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 | Environmental exposure datasets           | [Environmental Protection Agency Air Quality System (EPA AQS)](https://www.epa.gov/outdoor-air-quality-data), [Global Historical Climatology Network (GHCN)](https://www.ncdc.noaa.gov/data-access/land-based-station-data/land-based-datasets/global-historical-climatology-network-ghcn), [National Centers for Environmental Information Climate Data Online (NCEI CDO)](https://www.ncdc.noaa.gov/cdo-web/) | Respiratory diseases (association with air pollutant exposure)                                               |
 | Population surveys e.g., UK Biobank      | [UK Biobank](https://www.ukbiobank.ac.uk/), [National Health Interview Survey (NHIS)](https://www.cdc.gov/nchs/nhis/index.htm), [National Health and Nutrition Examination Survey (NHANES)](https://www.cdc.gov/nchs/nhanes/index.htm) | Chronic diseases (population-based study on disease prevalence and risk factors)                                |
 | Behavioral observation datasets           | [National Survey on Drug Use and Health (NSDUH)](https://www.samhsa.gov/data/data-we-collect/nsduh-national-survey-drug-use-and-health), [Add Health](https://www.cpc.unc.edu/projects/addhealth), [British Cohort Study (BCS)](http://cls.ucl.ac.uk/cls-studies/) | Substance abuse disorders (survey data on drug consumption and addiction)                                    |
+
+
+**OBA Table:**
+
+| Property    | Identifier        | Definition                                 |
+|-------------|-------------------|--------------------------------------------|
+| Length      | OBA:VT0002544     | The length of a digit.                     |
+| Mass        | OBA:VT0001259     | The mass of a multicellular organism.      |
+| Level       | OBA:2020005       | The amount of lysine in blood.            |
+| Morphology  | OBA:VT0005406     | The size of a heart.                       |
+
+**UPHENO Table:**
+
+| Property    | Identifier        | Definition                                     |
+|-------------|-------------------|------------------------------------------------|
+| Length      | UPHENO:0072215    | Increased length of the digit.                |
+| Mass        | UPHENO:0054299    | Decreased multicellular organism mass.        |
+| Level       | UPHENO:0034327    | Decreased level of lysine in blood.           |
+| Morphology  | UPHENO:0001471    | Increased size of the heart.                  |
+
+