No abstract available
MeSH terms
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Analgesia
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Animals
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Catecholamines / physiology*
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Endorphins / physiology
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Humans
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Narcotics / pharmacology
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Pain / physiopathology*
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Parasympathomimetics / pharmacology*
Substances
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Catecholamines
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Endorphins
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Narcotics
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Parasympathomimetics