No abstract available
MeSH terms
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Acetylcholine / metabolism*
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Amphetamine / pharmacology*
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Animals
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Atropine / pharmacology*
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Brain / drug effects
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Brain / metabolism*
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Cholinesterases / metabolism*
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Codeine / pharmacology*
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Male
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Morphine / pharmacology*
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Rats
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Tranquilizing Agents / pharmacology*
Substances
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Tranquilizing Agents
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Morphine
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Atropine
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Amphetamine
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Cholinesterases
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Acetylcholine
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Codeine