No abstract available
Publication types
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Research Support, U.S. Gov't, Non-P.H.S.
MeSH terms
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Animals
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Choice Behavior* / drug effects
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Decision Making* / drug effects
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Food
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Haplorhini
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Heroin / administration & dosage*
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Heroin / pharmacology
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Humans
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Male
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Morphine / administration & dosage
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Morphine / pharmacology
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Papio
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Reinforcement, Psychology
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Self Administration*
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Substance Withdrawal Syndrome / psychology