No abstract available
MeSH terms
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Analgesia
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Animals
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Brain / drug effects
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Brain / metabolism*
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Brain / physiology
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Brain Mapping
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Chemical Phenomena
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Chemistry
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Drug Tolerance
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Guinea Pigs
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Humans
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Ileum / metabolism
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Male
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Mice
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Models, Biological
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Naloxone / pharmacology
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Opium / analogs & derivatives*
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Opium / antagonists & inhibitors
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Opium / metabolism
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Opium / pharmacology
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Pain
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Radioligand Assay
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Receptors, Drug*
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Sodium / pharmacology
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Substance-Related Disorders / etiology*
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Tissue Extracts / analysis
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Tissue Extracts / antagonists & inhibitors
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Tissue Extracts / pharmacology
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Tritium
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Vas Deferens / metabolism
Substances
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Receptors, Drug
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Tissue Extracts
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Tritium
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Naloxone
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Opium
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Sodium