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| Attribute | Schema Datatype or Enumeration | Usage | Definition | Business Rules |
|---|---|---|---|---|
| OID | oid | Required | Unique identifer identifier for a StudyTiming element. | The StudyTiming/@OID value must be unique within the Study. |
| Name | name | Required | Human readable identifier for a StudyTiming element. | The StudyTiming/@Name value must be unique within the Study. |