No abstract available
Publication types
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Clinical Trial
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Comparative Study
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Controlled Clinical Trial
MeSH terms
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Acetaminophen / adverse effects
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Adult
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Amphetamine / pharmacology
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Aspirin / pharmacology
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Barbiturates / pharmacology
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Behavior / drug effects*
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Central Nervous System / drug effects*
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Clinical Trials as Topic
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Humans
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Male
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Mental Processes / drug effects*
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Phenacetin / adverse effects
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Phenacetin / pharmacology*
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Placebos
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Statistics as Topic
Substances
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Barbiturates
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Placebos
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Acetaminophen
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Amphetamine
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Phenacetin
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Aspirin