No abstract available
MeSH terms
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Acetylcholine / analysis*
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Acetylcholine / metabolism
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Acetylcholinesterase / metabolism
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Animals
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Brain / enzymology
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Brain / metabolism
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Brain Chemistry / drug effects*
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Differential Threshold / drug effects
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Dose-Response Relationship, Drug
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Female
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Male
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Morphine / administration & dosage
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Morphine / pharmacology*
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Nalorphine / pharmacology
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Naloxone / pharmacology
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Oxotremorine / pharmacology
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Pain* / metabolism
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Rana esculenta
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Reaction Time / drug effects
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Seasons
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Spinal Cord / drug effects*
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Spinal Cord / metabolism
Substances
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Naloxone
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Oxotremorine
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Morphine
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Acetylcholinesterase
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Acetylcholine
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Nalorphine