No abstract available
MeSH terms
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Analgesia
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Animals
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Behavior, Animal / drug effects
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Binding, Competitive
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Brain / metabolism*
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Ligands
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Male
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Naloxone / metabolism
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Oligopeptides* / chemical synthesis
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Oligopeptides* / pharmacology
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Rats
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Receptors, Drug*
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Structure-Activity Relationship
Substances
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Ligands
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Oligopeptides
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Receptors, Drug
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Naloxone