No abstract available
MeSH terms
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Adult
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Arousal / drug effects
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Dextroamphetamine* / administration & dosage
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Discrimination Learning / drug effects*
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Dose-Response Relationship, Drug
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Humans
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Hydromorphone* / administration & dosage
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Male
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Opioid-Related Disorders / psychology*
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Psychomotor Performance / drug effects
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Substance-Related Disorders / psychology*
Substances
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Hydromorphone
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Dextroamphetamine