...
An oid (OID) is a string that uniquely identifies an element (see see Section 2.13, Element Identifiers and References, for details). An oidref is the use of an OID to reference an element (as opposed to the defining occurrence of that OID). OIDs and oidrefs are non-empty strings.
A subjectKey or repeatKey helps designate a clinical data entity (see see Section 2.7, Clinical Data Keys). SubjectKeys are non-empty strings.
...
| Info |
|---|
Example: "fr-CA" denotes the French language, Canadian variant. See TranslatedText . See Section 3.2.1.1, TranslatedText, for a discussion of how languageTags are used. In general for data formats that allow NULLs, you should use an empty string (e.g., attribute-name="") to represent a NULL attribute value. To represent a NULL for data transmitted in an element body, send the element as empty (e.g. <element-name/>). There is a special IsNull indicator for clinical data, to differentiate between the case where there is no known value, and the case where you want to replace a value with NULL. See the IsNull attribute of the ItemData elementthe ItemData element (see Section 3.2.5.1.3, StudyEventData). See the ODM Foundation Schema for definitions of the enumeration types. |
...