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Subject Identifier Primary Indicator
Specifies whether this is the main or principal subject identifier. (NCI Thesaurus)
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The date and time span for when the subject identifier is active.
A sequence of characters used to identify, name, or characterize the study subject.
An identifier for a person who is the subject in a study.
The explanation given as to why a subject was prevented from being allowed to participate in a study.
A number that identifies the ordering relations (in time, space, etc.) in a set of subject elements.
The date and time a subject element began.
