| Health / Medical Topics |
Substance Use Modified Reported Term
An indication or description of a change in substance usage. (NCI Thesaurus)
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A character or string that represents a substance usage group.
A characterization of the relationship of a substance use conclusion point in time to a reference point in time.
The day of the week substance usage concluded.
The date and time substance usage has concluded.
The stop date of the substance usage.
The unit of measure for the period of time over which substance usage occurs.
