No abstract available
Publication types
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Acetylcholine / metabolism*
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Animals
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Brain / drug effects
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Brain / metabolism*
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Depression, Chemical
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Drug Tolerance
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Hemicholinium 3 / analogs & derivatives
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Hemicholinium 3 / pharmacology
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Heroin / pharmacology*
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Male
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Methadone / pharmacology*
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Rats
Substances
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Hemicholinium 3
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Heroin
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Acetylcholine
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Methadone