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All XML attribute values and some element bodies are text strings. These strings are defined by data format. Each data format specifies the allowable form of the string, the corresponding XML Schema datatype, and the intended use of the value. The set of ODM data formats follows: |
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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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