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A human-readable text label used for tracking a finding or feature, potentially across multiple observations, over time, where this label is unique among other findings or features for the same subject. [Adapted from DICOM Tracking ID (0062,0020)] EXAMPLE(S): T01, NT02, T04.2, T02/T03, NEW01 [Adopted from CDISC SDTM\'s TU.TULNKID examples] OTHER NAME(S): Lesion Number Tracking Identifier Link ID (TU.TULNKID) NOTE(S): Once a lesion identifier text is designated for a specific lesion that identifier text may not change or be re-used to denote a different lesion for the same subject. Note there is no expectation that lesion identifier texts are unique across all subjects.
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