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| Column | Description |
|---|---|
| Element ID | An ID number arbitrarily assigned by the author of this wiki page, for maintenance purposes. It has no relevance in the NCI Clinical Trials API or in CTRP. |
| Data Element | Data element name as it appears in the API, data warehouse (DW), or database (DB), in that order of preference. |
| Definition | A definition of the data element. |
| API | Yes or No, indicating whether the data element is in the API JSON schema and in the API JSON output, such as clinical-trial/NCT02194738. Where other columns mention components, this refers to the hierarchy of nested elements in the API schema. For example, the central_contact_email element is nested within the central_contact element in the API schema. The central_contact element does not exist in the other systems, except in the sense that its components (such as the central_contact_email element) do exist in the other systems. |
| TSR | Yes or No, indicating whether the data element is in the Trial Summary Report (TSR), as generated from CTRP. |
| DW | Yes or No, indicating whether the data element is in the data warehouse. |
| DB | Yes or No, indicating whether the data element is in the CTRP database for the Protocol Abstraction or Person/Organization web application. |
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