No abstract available
MeSH terms
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Adult
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Amphetamine / administration & dosage
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Amphetamine / supply & distribution
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Central Nervous System Stimulants / administration & dosage
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Central Nervous System Stimulants / supply & distribution*
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Drug Prescriptions / statistics & numerical data*
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Humans
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Methylphenidate / administration & dosage
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Methylphenidate / supply & distribution
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Substance-Related Disorders / epidemiology*
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United States / epidemiology
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World Health Organization
Substances
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Central Nervous System Stimulants
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Methylphenidate
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Amphetamine