Body:
| EMPTY |
Attributes:
| StudyOID | oidref | ||
| SubjectKey | subjectKey | (optional) | |
| StudyEventOID | oidref | (optional) | |
| StudyEventRepeatKey | repeatKey | (optional) | |
| ItemGroupOID | oidref | (optional) | |
| ItemGroupRepeatKey | repeatKey | (optional) | |
| ItemOID | oidref | (optional) |
Contained in:
A KeySet references a single entity: a study, a subject, a study event, etc. Only the attributes needed to specify the particular entity are required, and all others must be omitted. (See the section on Clinical Data Keys.)