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Use Duration Unit
The unit of measure for the duration of substance usage. (NCI Thesaurus)
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A document that describes the interaction between a user (or other initiator of the interaction) and a system, represented as a sequence…
A manner, or usual, or accepted practice of using something.
A manner, or usual, or accepted practice of using something.
A legal entity in the United States which is controlled by the state. Typically a public institution will have a board of…
Published by the US Veterans' Administration. National Drug File Reference Terminology covers clinical drugs used at the VA.
A region in the United States created by territorial division for the purpose of local government.
