No abstract available
MeSH terms
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Acetylcholine / metabolism*
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Analgesics, Opioid / pharmacology*
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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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Butorphanol / pharmacology
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Cyclazocine / pharmacology
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Endorphins / pharmacology*
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Enkephalins / pharmacology*
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In Vitro Techniques
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Male
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Nerve Tissue Proteins / metabolism
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Pentazocine / pharmacology
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Rats
Substances
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Analgesics, Opioid
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Endorphins
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Enkephalins
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Nerve Tissue Proteins
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Cyclazocine
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Acetylcholine
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Butorphanol
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Pentazocine