No abstract available
MeSH terms
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Acetylcholine / metabolism*
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Analgesics
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Animals
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Behavior, Animal / drug effects
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Brain / drug effects
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Brain / metabolism*
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Catatonia / chemically induced
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Choline / metabolism
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Endorphins / administration & dosage
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Endorphins / pharmacology*
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Humans
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Injections
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Injections, Intraventricular
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Kinetics
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Male
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Morphine / pharmacology
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Rats
Substances
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Analgesics
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Endorphins
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Morphine
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Choline
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Acetylcholine