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Example: "fr-CA" denotes the French language, Canadian variant. See TranslatedText (archive) 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 element. See the ODM Foundation Schema for definitions of the enumeration types. |
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