diff --git a/README.md b/README.md
index d5b5f75..6b4a00b 100644
--- a/README.md
+++ b/README.md
@@ -54,6 +54,12 @@ If you are working with a local Docker distribution based on from [ubkg-neo4j](h
    - USERNAME=neo4j
    - PASSWORD= the value of _neo4j_password_ from the common **container.cfg** file.
 
+## Using API keys
+Some deployments based on the UBKG API may require that calls to endpoints include an API key in the header.
+Because this involves integration with authorization architecture (e.g., API gateways and authorization specific to a 
+network resource), the configuration of API keys is beyond the scope of the UBKG API. 
+
+
 ### Starting your neo4j instance
 If you are using a local instance of the UBKG, the instance should be running. 
 In particular, if you installed a local Docker instance of UBKG, be sure that Docker Desktop is running. 
diff --git a/VERSION b/VERSION
index 7d2ed7c..cd57a8b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.1.4
+2.1.5
diff --git a/dd-api-spec.yaml b/dd-api-spec.yaml
index 2cedec6..606adc9 100644
--- a/dd-api-spec.yaml
+++ b/dd-api-spec.yaml
@@ -13,7 +13,7 @@ servers:
   - url: https://datadistillery.api.sennetconsortium.org/
     description: Production server
 security:
-  - api_key: []
+  - umls_key: []
 paths:
   /codes/{code_id}/codes:
     get:
@@ -166,12 +166,12 @@ paths:
           description: No Definitions associated with the Concept _query_concept_id_.
         '5XX':
           description: Unknown error
-  /concepts/{identifier}/nodeobjects:
+  /concepts/{concept_id}/nodeobjects:
     get:
       operationId: concepts_identifier_nodes_get
       summary: Returns a set of "Concept Node objects" that "match" an identifier. [A Concept node in the UBKG is the origin of a subgraph that links the Concept node to a set of Code, Term, Definition, and Semantic Type nodes. A "Concept Node object" represents this subgraph as a set of Concept properties--i.e., all of the Concept's linked Codes, terms, definitions, and semantic types. A "match" is an exact match between an identifier and a text-based property in a Concept Node object. Because an identifier may match properties in more than one Concept Node object, the endpoint can return multiple Concept Node objects.]
       parameters:
-        - name: identifier
+        - name: concept_id
           in: path
           required: true
           description: The string to match against properties related to Concepts. Related properties include the preferred term for the Concept; the CUI for the Concept; the CodeID for a Code linked to the Concept; and terms for a Code linked to a Concept.
@@ -887,9 +887,10 @@ paths:
           description: Unknown error
 components:
   securitySchemes:
-    api_key:
+    umls_key:
       type: apiKey
-      name: X-API-KEY
+      description: API key for a UMLS licensee account, prefixed with "UMLS-Key "--e.g., "UMLS-Key <my-umls-key>"
+      name: Authorization
       in: header
   schemas:
     CodesCodesObj: # Schema name
diff --git a/pyproject.toml b/pyproject.toml
index d272b81..3fda249 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "ubkg_api"
-version = "2.1.4"
+version = "2.1.5"
 authors = [
   { name="HuBMAP Consortium", email="api-developers@hubmapconsortium.org" },
 ]
diff --git a/tests/python_client_test.py b/tests/python_client_test.py
index 531bb89..0d4cd37 100644
--- a/tests/python_client_test.py
+++ b/tests/python_client_test.py
@@ -1,6 +1,6 @@
 # coding: utf-8
 
-# Simple Python script that demonstrates how to use the API key stored in a file named api.key
+# Simple Python script that demonstrates how to use the API key stored in a file named umls.key
 # in the application directory to execute an endpoint.
 
 import requests
@@ -8,13 +8,13 @@
 
 # Read the API key.
 fpath = os.path.dirname(os.getcwd())
-fpath = os.path.join(fpath, 'tests', 'api.key')
+fpath = os.path.join(fpath, 'tests', 'umls.key')
 f = open(fpath, 'r')
 apikey = f.read()
 f.close()
 
 # Add the API key to authorization for the URL.
-headers = {'X-API-KEY': f'{apikey}'}
+headers = {'Authorization': f'UMLS-Key {apikey}'}
 
 # Execute the endpoint.
 
diff --git a/tests/test_dd_api.sh b/tests/test_dd_api.sh
index 22bb6de..58beb09 100755
--- a/tests/test_dd_api.sh
+++ b/tests/test_dd_api.sh
@@ -21,7 +21,7 @@ Help()
 }
 
 # Read the API key from file.
-apikey=$(<api.key)
+umlskey=$(<umls.key)
 
 
 #####
@@ -71,7 +71,7 @@ echo "1. /codes/SNOMEDCT_US%3A254837009/codes?test=test =>invalid parameter; sho
 curl --request GET \
  --url "${UBKG_URL}/codes/SNOMEDCT_US%3A254837009/codes?test=test" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $apikey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -80,7 +80,7 @@ echo "2. codes/SNOMEDCT_US%3A254837009/codes?sab=999 =>no match; should return c
 curl --request GET \
  --url "${UBKG_URL}/codes/SNOMEDCT_US%3A254837009/codes?sab=999" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -88,7 +88,7 @@ echo "3. codes/SNOMEDCT_US%3A254837009X/codes => no match; should return custom
 curl --request GET \
  --url "${UBKG_URL}/codes/SNOMEDCT_US%3A254837009X/codes" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -96,7 +96,7 @@ echo "4. codes/SNOMEDCT_US%3A254837009/codes?sab=CHV,DOID => with sab as comma-d
 curl --request GET \
  --url "${UBKG_URL}/codes/SNOMEDCT_US%3A254837009/codes?sab=CHV,DOID" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -104,7 +104,7 @@ echo "5. /codes/SNOMEDCT_US%3A254837009/codes?sab=CHV&sab=DOID => with individua
 curl --request GET \
  --url "${UBKG_URL}/codes/SNOMEDCT_US%3A254837009/codes?sab=CHV&sab=DOID" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -118,7 +118,7 @@ echo "1. codes/SNOMEDCT_US%3A254837009X/concepts => no match; should return cust
 curl --request GET \
  --url "${UBKG_URL}/codes/SNOMEDCT_US%3A254837009X/concepts" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -126,7 +126,7 @@ echo "2. /codes/SNOMEDCT_US%3A254837009/concepts => valid code; should return 20
 curl --request GET \
  --url "${UBKG_URL}/codes/SNOMEDCT_US%3A254837009/concepts" \
  --header "Accept: application/json"  \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -140,7 +140,7 @@ echo "1. concepts/C0678222/codes?test=x => invalid parameter; should return cust
 curl --request GET \
  --url "${UBKG_URL}/concepts/C0678222/codes?test=x" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -148,7 +148,7 @@ echo "2. concepts/C0678222x/codes => no match; should return custom 404" | tee -
 curl --request GET \
  --url "${UBKG_URL}/concepts/C0678222x/codes" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -156,7 +156,7 @@ echo "3. concepts/C0678222/codes => valid concept; should return 200" | tee -a t
 curl --request GET \
  --url "${UBKG_URL}/concepts/C0678222/codes" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -170,7 +170,7 @@ echo "1. concepts/C0678222Z/concepts => no match; should return custom 404" | te
 curl --request GET \
  --url "${UBKG_URL}/concepts/C0678222Z/concepts" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -178,7 +178,7 @@ echo "2. concepts/C0678222/concepts => valid concept; should return 200" | tee -
 curl --request GET \
  --url "${UBKG_URL}/concepts/C0678222/concepts" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -192,7 +192,7 @@ echo "1. concepts/C0678222x/definitions => no match; should return custom 404" |
 curl --request GET \
  --url "${UBKG_URL}/concepts/C0678222x/definitions" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -200,7 +200,7 @@ echo "2. concepts/C0678222/definitions => valid concept; should return 200" | te
 curl --request GET \
  --url "${UBKG_URL}/concepts/C0678222/definitions" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -215,7 +215,7 @@ echo "1. concepts/paths/subgraph? => missing parameters: should return custom 40
 curl --request GET \
  --url "${UBKG_URL}/concepts/paths/subgraph" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -223,7 +223,7 @@ echo "2. concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=-1&limit=1 => nega
 curl --request GET \
  --url "${UBKG_URL}/concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=-1&limit=1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -231,7 +231,7 @@ echo "3. concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=1&limit=-1 => nega
 curl --request GET \
  --url "${UBKG_URL}/concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=1&limit=-1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -239,7 +239,7 @@ echo "4. concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=z&limit=1 => non-n
 curl --request GET \
  --url "${UBKG_URL}/concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=Z&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -247,7 +247,7 @@ echo "5. concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=1&limit=Z => non-n
 curl --request GET \
  --url "${UBKG_URL}/concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=1&limit=Z" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -255,7 +255,7 @@ echo "6. concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isaZ=> no match: should ret
 curl --request GET \
  --url "${UBKG_URL}/concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isaz" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -263,7 +263,7 @@ echo "7. concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=0&limit=10 => vali
 curl --request GET \
  --url "${UBKG_URL}/concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=0&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -271,7 +271,7 @@ echo "8. concepts/paths/subgraph?sab=SNOMEDCT_US&sab=UBERON&rel=isa&rel=part_of&
 curl --request GET \
  --url "${UBKG_URL}/concepts/paths/subgraph?sab=SNOMEDCT_US&sab=UBERON&rel=isa&skip=0&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -279,7 +279,7 @@ echo "9. concepts/paths/subgraph?sab=SNOMEDCT_US%2CUBERON&rel=isa%2Cpart_of&skip
 curl --request GET \
  --url "${UBKG_URL}/concepts/paths/subgraph?sab=SNOMEDCT_US&rel=isa&skip=0&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -293,7 +293,7 @@ echo "1. concepts/Cellsz/nodeobjects => no match; should return custom 404" | te
 curl --request GET \
  --url "${UBKG_URL}/concepts/CellsZ/nodeobjects" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -301,7 +301,7 @@ echo "2. concepts/Cells/nodeobjects => valid identifier; should return 200" | te
 curl --request GET \
  --url "${UBKG_URL}/concepts/Cells/nodeobjects" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -316,7 +316,7 @@ echo "1. concepts/C2720507/paths/expand => missing required parameters; should r
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -324,7 +324,7 @@ echo "2. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepthZ=2&maxd
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepthZ=2&maxdepth=3&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -332,7 +332,7 @@ echo "3. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=Z&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=Z&maxdepth=3&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -340,7 +340,7 @@ echo "4. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=2&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=2&maxdepth=Z&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -348,7 +348,7 @@ echo "5. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=-1&maxd
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=-1&maxdepth=3&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -356,7 +356,7 @@ echo "6. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=2&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=2&maxdepth=-1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -364,7 +364,7 @@ echo "7. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=3&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=3&maxdepth=2&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -372,7 +372,7 @@ echo "8. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxdepth=10&skip=-1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -380,7 +380,7 @@ echo "9. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxdepth=10&skip=1&limit=-1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -388,7 +388,7 @@ echo "10. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxd
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxdepth=10&skip=Z&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -396,7 +396,7 @@ echo "11. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxd
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxdepth=10&skip=1&limit=Z" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -404,7 +404,7 @@ echo "12. concepts/C2720507Z/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=2&max
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507Z/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=2&maxdepth=3&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -412,7 +412,7 @@ echo "13. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxd
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=9&maxdepth=10&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -420,7 +420,7 @@ echo "14. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=2&maxd
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&rel=isa&mindepth=2&maxdepth=3&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -428,7 +428,7 @@ echo "15. concepts/C2720507/paths/expand?sab=SNOMEDCT_US&sab=UBERON&rel=isa&rel=
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&sab=UBERON&rel=isa&rel=part_of&mindepth=2&maxdepth=3&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -436,7 +436,7 @@ echo "16. concepts/C2720507/paths/expand?sab=SNOMEDCT_US%2CUBERON&rel=isa%2Cpart
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/expand?sab=SNOMEDCT_US&sab=UBERON&rel=isa&rel=part_of&mindepth=2&maxdepth=3&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -451,7 +451,7 @@ echo "1. concepts/C2720507/paths/trees => missing parameters: should return cust
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -459,7 +459,7 @@ echo "2. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&relZ=isa&mindepth=-1&maxd
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&relZ=isa&mindepth=-1&maxdepth=3&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -467,7 +467,7 @@ echo "3. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=-1&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=-1&maxdepth=3&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -475,7 +475,7 @@ echo "4. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxdep
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxdepth=-1&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -483,7 +483,7 @@ echo "5. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=Z&maxdep
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=Z&maxdepth=-1&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -491,7 +491,7 @@ echo "6. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxdep
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=Z&maxdepth=-1&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -499,7 +499,7 @@ echo "7. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=3&maxdep
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=3&maxdepth=2&skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -507,7 +507,7 @@ echo "8. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxdep
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=Z&maxdepth=3&skip=-1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -515,7 +515,7 @@ echo "9. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxdep
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=Z&maxdepth=3&skip=1&limit=-10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -523,7 +523,7 @@ echo "10. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxdepth=3&skip=Z&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -531,7 +531,7 @@ echo "11. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxdepth=3&skip=1&limit=Z" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -539,7 +539,7 @@ echo "12. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxde
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&rel=isa&mindepth=1&maxdepth=3&skip=1&limit=10" \
 --header "Accept: application/json" \
---header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+--header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -547,7 +547,7 @@ echo "13. concepts/C2720507/paths/trees?sab=SNOMEDCT_US&sab=UBERON&rel=isa&rel=p
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&sab=UBERON&rel=isa&rel=part_of&mindepth=1&maxdepth=3&skip=1&limit=10" \
 --header "Accept: application/json" \
---header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+--header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -555,7 +555,7 @@ echo "15. concepts/C2720507/paths/trees?sab=SNOMEDCT_US%2CUBERON&rel=isa%2Cpart_
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&sab=UBERON&rel=isa&rel=part_of&maxdepth=3&skip=1&limit=10" \
 --header "Accept: application/json" \
---header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+--header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -563,7 +563,7 @@ echo "15. concepts/C2720507/paths/trees?sab=SNOMEDCT_US%2CUBERON&rel=isa%2Cpart_
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/trees?sab=SNOMEDCT_US&sab=UBERON&rel=isa&rel=part_of&mindepth=1&maxdepth=3&skip=1&limit=10" \
 --header "Accept: application/json" \
---header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+--header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -578,7 +578,7 @@ echo "1. concepts/C2720507/paths/shortestpath/C1272753 => missing parameters; sh
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/shortestpath/C1272753" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -586,7 +586,7 @@ echo "2. concepts/C2720507/paths/shortestpath/C1272753?sab=SNOMEDCT_US&relZ=isa
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/shortestpath/C1272753?sab=SNOMEDCT_US&rel2=isa" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -594,7 +594,7 @@ echo "3. concepts/C2720507Z/paths/shortestpath/C1272753?sab=SNOMEDCT_US&rel=isa
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507Z/paths/shortestpath/C1272753?sab=SNOMEDCT_US&rel=isa" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -602,7 +602,7 @@ echo "4. concepts/C2720507/paths/shortestpath/C1272753?sab=SNOMEDCT_US&rel=isa =
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/shortestpath/C1272753?sab=SNOMEDCT_US&rel=isa" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -610,7 +610,7 @@ echo "5. concepts/C2720507/paths/shortestpath/C1272753?sab=SNOMEDCT_US&sab=UBERO
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/shortestpath/C1272753?sab=SNOMEDCT_US&sab=UBERON&rel=isa&rel=part_of" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -618,7 +618,7 @@ echo "6. concepts/C2720507/paths/shortestpath/C1272753?sab=SNOMEDCT_US%2CUBERON&
 curl --request GET \
  --url "${UBKG_URL}/concepts/C2720507/paths/shortestpath/C1272753?sab=SNOMEDCT_US%2CUBERON&rel=isa%2Cpart_of" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -632,7 +632,7 @@ echo "1. node-types GET => valid; should return 200" | tee -a test.out
 curl --request GET \
  --url "${UBKG_URL}/node-types" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -647,7 +647,7 @@ echo "1. node-types/counts GET => blocked; should return custom 400" | tee -a te
 curl --request GET \
  --url "${UBKG_URL}/node-types/counts" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -659,7 +659,7 @@ echo "1. node-types/Codez/counts GET => no match; should return custom 404" | te
 curl --request GET \
  --url "${UBKG_URL}/node-types/Codez/counts" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -667,7 +667,7 @@ echo "2. node-types/Code/counts GET => valid; should return 200" | tee -a test.o
 curl --request GET \
  --url "${UBKG_URL}/node-types/Code/counts" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -682,7 +682,7 @@ echo "1. node-types/counts-by-sab GET => blocked because of likely timeout; shou
 curl --request GET \
  --url "${UBKG_URL}/node-types/counts-by-sab?test=test" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -697,7 +697,7 @@ echo "1. node-types/Codez/counts-by-sab?sab=SNOMEDCT_US GET => no match; should
 curl --request GET \
  --url "${UBKG_URL}/node-types/Codez/counts-by-sab?sab=SNOMED_US" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -705,7 +705,7 @@ echo "2. node-types/Code/counts-by-sab?sab=SNOMEDCT_US GET => valid, single sab;
 curl --request GET \
  --url "${UBKG_URL}/node-types/Code/counts-by-sab?sab=SNOMEDCT_US" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -713,7 +713,7 @@ echo "3. node-types/Code/counts-by-sab?sab=SNOMEDCT_US&sab=NCI GET => valid, mul
 curl --request GET \
  --url "${UBKG_URL}/node-types/Code/counts-by-sab?sab=SNOMEDCT_US&sab=NCI" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -721,7 +721,7 @@ echo "4. node-types/Code/counts-by-sab?sab=SNOMEDCT_US%2CNCI GET => valid, list
 curl --request GET \
  --url "${UBKG_URL}/node-types/Code/counts-by-sab?sab=SNOMEDCT_US%2CNCI" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -732,7 +732,7 @@ echo "1. property-types GET => valid; should return 200" | tee -a test.out
 curl --request GET \
  --url "${UBKG_URL}/property-types" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -743,7 +743,7 @@ echo "1. relationship-types GET => valid; should return 200" | tee -a test.out
 curl --request GET \
  --url "${UBKG_URL}/relationship-types" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -757,7 +757,7 @@ echo "1. sabs => valid: should return 200" | tee -a test.out
 curl --request GET \
  --url "${UBKG_URL}/sabs" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -771,7 +771,7 @@ echo "1. sabs/codes/counts?test=test => invalid parameter: should return custom
 curl --request GET \
  --url "${UBKG_URL}/sabs/codes/counts?test=test" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -779,7 +779,7 @@ echo "2. sabs/codes/counts?skip=-1&limit=10 => negative skip value: should retur
 curl --request GET \
  --url "${UBKG_URL}/sabs/codes/counts?skip=-1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -787,7 +787,7 @@ echo "3. sabs/codes/counts?skip=1&limit=-1 => negative limit value: should retur
 curl --request GET \
  --url "${UBKG_URL}/sabs/codes/counts?skip=1&limit=-1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -795,7 +795,7 @@ echo "4. sabs/codes/counts?skip=a&limit=10 => nonnumeric skip value: should retu
 curl --request GET \
  --url "${UBKG_URL}/sabs/codes/counts?skip=a&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -803,7 +803,7 @@ echo "5. sabs/codes/counts?skip=1&limit=a => nonnumeric limit value: should retu
 curl --request GET \
  --url "${UBKG_URL}/sabs/codes/counts?skip=1&limit=a" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -811,7 +811,7 @@ echo "4. sabs/codes/counts?skip=5&limit=10 => valid: should return 200" | tee -a
 curl --request GET \
  --url "${UBKG_URL}/sabs/codes/counts?skip=5&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -825,7 +825,7 @@ echo "1. sabs/SNOMEDCT_US/codes/counts?test=test => invalid parameter: should re
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/counts?test=test" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -833,7 +833,7 @@ echo "2. sabs/SNOMEDCT_US/codes/counts?skip=-1&limit=10 => negative skip value:
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/counts?skip=-1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -841,7 +841,7 @@ echo "3. sabs/SNOMEDCT_US/codes/counts?skip=1&limit=-1 => negative limit value:
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/counts?skip=0&limit=-1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -849,7 +849,7 @@ echo "4. sabs/SNOMEDCT_US/codes/counts?skip=a => nonnumeric skip value: should r
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/counts?skip=a&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -857,7 +857,7 @@ echo "5. sabs/SNOMEDCT_US/codes/counts?skip=a => nonnumeric limit value: should
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/counts?skip=0&limit=a" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -865,7 +865,7 @@ echo "4. sabs/SNOMEDCT_USA/codes/counts?skip=0&limit=10 => no match: should retu
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_USA/codes/counts?skip=0&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -873,7 +873,7 @@ echo "5. sabs/SNOMEDCT_US/codes/counts?skip=0&limit=10 => valid: should return 2
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/counts?skip=0&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -887,7 +887,7 @@ echo "1. sabs/codes/details => blocked; return custom 400" | tee -a test.out
 curl --request GET \
  --url "${UBKG_URL}/sabs/codes/details" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -901,7 +901,7 @@ echo "1. sabs/SNOMEDCT_US/codes/details?test=test => invalid parameter: should r
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/details?test=test" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -909,7 +909,7 @@ echo "2. sabs/SNOMEDCT_US/codes/details?skip=-1&limit=10 => negative skip value:
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/details?skip=-1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -917,7 +917,7 @@ echo "3. sabs/SNOMEDCT_US/codes/details?skip=1&limit=-1 => negative limit value:
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/details?skip=1&limit=-1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -925,7 +925,7 @@ echo "4. sabs/SNOMEDCT_US/codes/details?skip=a&limit=10 => nonnumeric skip value
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/details?skip=a&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -933,7 +933,7 @@ echo "5. sabs/SNOMEDCT_US/codes/details?skip=1&limit=a => nonnumeric limit value
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/details?skip=1&limit=a" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -941,7 +941,7 @@ echo "5. sabs/SNOMEDCT_USA/codes/details => no match: should return custom 404"
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_USA/codes/details" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -949,14 +949,14 @@ echo "3. sabs/SNOMEDCT_US/codes/details?skip=0&limit=10 => valid: should return
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/codes/details?skip=0&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
 #--------------------------------------------
 echo "TESTS FOR: sabs/term-types GET" | tee -a test.out
 echo "SIGNATURE: /sabs/term-types" \
---header "X-API-KEY:$apikey" | tee -a test.out
+--header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -964,14 +964,14 @@ echo "1. sabs/term-types => blocked; should return custom 400" | tee -a test.out
 curl --request GET \
  --url "${UBKG_URL}/sabs/term-types" \
  --header "Accept: application/json"  \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
 #--------------------------------------------
 echo "TESTS FOR: sabs/<sab>/term-types GET" | tee -a test.out
 echo "SIGNATURE: /sabs/<sab>term-types" \
---header "X-API-KEY:$apikey" | tee -a test.out
+--header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -979,7 +979,7 @@ echo "1. sabs/SNOMEDCT_USA/term-types => no match; should return custom 404" | t
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_USA/term-types" \
  --header "Accept: application/json"  \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -987,7 +987,7 @@ echo "2. sabs/SNOMEDCT_US/term-types => valid; should return 200" | tee -a test.
 curl --request GET \
  --url "${UBKG_URL}/sabs/SNOMEDCT_US/term-types" \
  --header "Accept: application/json"  \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1001,7 +1001,7 @@ echo "1. semantics/semantic-types?test=test => invalid parameter; should return
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types?test=test" \
  --header "Accept: application/json"  \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1009,7 +1009,7 @@ echo "2. semantics/semantic-types?skip=-1&limit=10 => negative skip; should retu
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types?skip=-1&limit=10" \
  --header "Accept: application/json"  \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1017,7 +1017,7 @@ echo "3. semantics/semantic-types?skip=1&limit=-1 => negative limit; should retu
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types?skip=1&limit=-1" \
  --header "Accept: application/json"  \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1025,7 +1025,7 @@ echo "4. semantics/semantic-types?skip=a&limit=10 => non-numeric skip; should re
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types?skip=a&limit=10" \
  --header "Accept: application/json"  \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1033,7 +1033,7 @@ echo "5. semantics/semantic-types?skip=1&limit=a => non-numeric limit; should re
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types?skip=1&limit=a" \
  --header "Accept: application/json"  \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1041,7 +1041,7 @@ echo "6. semantics/semantic-types => should return 200" | tee -a test.out
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types?skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1055,7 +1055,7 @@ echo "1. /semantics/semantic-types/Anatomical%20Structure?skip=1&limit=10&test=t
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure?skip=1&limit=10&test=test" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1063,7 +1063,7 @@ echo "2. /semantics/semantic-types/Anatomical%20Structure?skip=-1&limit=10 => ne
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure?skip=-1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1071,7 +1071,7 @@ echo "3. semantics/semantic-types/Anatomical%20Structure?skip=1&limit=-1 => nega
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure?skip=1&limit=-1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1079,7 +1079,7 @@ echo "4. semantics/semantic-types/Anatomical%20Structure?skip=a&limit=10 => non-
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure?skip=-1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1087,7 +1087,7 @@ echo "5. semantics/semantic-types/Anatomical%20Structure?skip=1&limit=a => non-n
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure?skip=1&limit=-1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1095,7 +1095,7 @@ echo "6. semantics/semantic-types/Anatomical%20Structurez?skip=1&limit=10 => no
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structurez?skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1103,7 +1103,7 @@ echo "7. semantics/semantic-types/Anatomical%20Structure?&skip=0&limit=10 => val
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure?&skip=0&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1117,7 +1117,7 @@ echo "1. semantics/semantic-types/Anatomical%20Structure/subtypes?test=test => i
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure/subtypes?test=test" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1125,7 +1125,7 @@ echo "2. semantics/semantic-types/Anatomical%20Structure/subtypes?skip=-1&limit=
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure/subtypes?skip=-1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1133,7 +1133,7 @@ echo "3. semantics/semantic-types/Anatomical%20Structure/subtypes?skip=1&limit=-
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure/subtypes?skip=1&limit=-1" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1141,7 +1141,7 @@ echo "4. semantics/semantic-types/Anatomical%20Structure/subtypes?skip=a&limit=1
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure/subtypes?skip=a&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1149,7 +1149,7 @@ echo "5. semantics/semantic-types/Anatomical%20Structure/subtypes?skip=1&limit=a
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure/subtypes?skip=1&limit=a" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1157,7 +1157,7 @@ echo "6. semantics/semantic-types/Anatomical%20Structurez/subtypes?skip=1&limit=
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structurez/subtypes?skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1166,13 +1166,13 @@ echo "7. semantics/semantic-types/Anatomical%20Structure/subtypes?skip=1&limit=1
 curl --request GET \
  --url "${UBKG_URL}/semantics/semantic-types/Anatomical%20Structure/subtypes?skip=1&limit=10" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 
 #--------------------------------------------
 echo "TESTS FOR: terms/<term_id>/codes GET" | tee -a test.out
 echo "SIGNATURE: /terms/<term_id>/codes" \
---header "X-API-KEY:$apikey" | tee -a test.out
+--header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1180,7 +1180,7 @@ echo "1. terms/Breast%20cancerz/codes => no match; should return custom 404" | t
 curl --request GET \
  --url "${UBKG_URL}/terms/Breast%20cancerz/codes" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1188,7 +1188,7 @@ echo "2. terms/codes/Breast%20cancer GET with match: should return 200" | tee -a
 curl --request GET \
  --url "${UBKG_URL}/terms/Breast%20cancer/codes" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1202,7 +1202,7 @@ echo | tee -a test.out
 curl --request GET \
  --url "${UBKG_URL}/terms/Breast%20cancerz/concepts" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1210,7 +1210,7 @@ echo "2. terms/Breast%20cancer/concepts GET with match; should return 200" | tee
 curl --request GET \
  --url "${UBKG_URL}/terms/Breast%20cancer/concepts" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 
 #------------------------------------------
@@ -1220,7 +1220,7 @@ echo "1. sources GET => should return 200" | tee -a test.out
 curl --request GET \
  --url "${UBKG_URL}/sources" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1228,7 +1228,7 @@ echo "2. /sources?test=x GET => invalid parameter; should return custom 400" | t
 curl --request GET \
  --url "${UBKG_URL}/sources?test=x" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1236,7 +1236,7 @@ echo "3. /sources?sab=X GET => invalid SAB; should return custom 404" | tee -a t
 curl --request GET \
  --url "${UBKG_URL}/sources?sab=x" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1244,7 +1244,7 @@ echo "4. /sources?context=x GET => invalid context; should return custom 404" |
 curl --request GET \
  --url "${UBKG_URL}/sources?context=x" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1252,7 +1252,7 @@ echo "5. /sources?sab=HPOMP GET => valid SAB; should return 200" | tee -a test.o
 curl --request GET \
  --url "${UBKG_URL}/sources?sab=HPOMP" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
 
@@ -1260,6 +1260,6 @@ echo "6. /sources?context=base_context GET => valid context; should return 200"
 curl --request GET \
  --url "${UBKG_URL}/sources?context=base_context" \
  --header "Accept: application/json" \
- --header "X-API-KEY:$apikey" | cut -c1-60 | tee -a test.out
+ --header "Authorization: UMLS-Key $umlskey" | cut -c1-60 | tee -a test.out
 echo | tee -a test.out
 echo | tee -a test.out
\ No newline at end of file
diff --git a/ubkg-api-spec.yaml b/ubkg-api-spec.yaml
index c20fbb5..3b55bff 100644
--- a/ubkg-api-spec.yaml
+++ b/ubkg-api-spec.yaml
@@ -161,12 +161,12 @@ paths:
           description: No Definitions associated with the Concept _query_concept_id_.
         '5XX':
           description: Unknown error
-  /concepts/{identifier}/nodeobjects:
+  /concepts/{concept_id}/nodeobjects:
     get:
       operationId: concepts_identifier_nodes_get
       summary: Returns a set of "Concept Node objects" that "match" an identifier. [A Concept node in the UBKG is the origin of a subgraph that links the Concept node to a set of Code, Term, Definition, and Semantic Type nodes. A "Concept Node object" represents this subgraph as a set of Concept properties--i.e., all of the Concept's linked Codes, terms, definitions, and semantic types. A "match" is an exact match between an identifier and a text-based property in a Concept Node object. Because an identifier may match properties in more than one Concept Node object, the endpoint can return multiple Concept Node objects.]
       parameters:
-        - name: identifier
+        - name: concept_id
           in: path
           required: true
           description: The string to match against properties related to Concepts. Related properties include the preferred term for the Concept; the CUI for the Concept; the CodeID for a Code linked to the Concept; and terms for a Code linked to a Concept.
@@ -881,11 +881,6 @@ paths:
         '5XX':
           description: Unknown error
 components:
-  # securitySchemes:
-    # api_key:
-      # type: apiKey
-      # name: X-API-KEY
-      # in: header
   schemas:
     CodesCodesObj: # Schema name
       description: Code nodes that link to the same Concept node to which a specified Code links.