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Substance Usage Start Date
The date on which the substance usage begins. (NCI Thesaurus)
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An indication or description that substance usage was previously determined, characterized, or detailed.
A point in time that indicates the conclusion of substance usage.
An indicator of the conclusion of substance usage in relation to a specific point in time.
A substance usage identifier obtained from a dictionary.
An agent composed of substance P (SP) conjugated to the ribosome-inactivating protein and neurotoxin saporin (SAP), isolated from the seeds of the…
An eleven-amino acid neurotransmitter that appears in both the central and peripheral nervous systems. It is involved in transmission of pain, causes…
