No abstract available
MeSH terms
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Adolescent
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Adult
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Amphetamine
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California
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Cannabis
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Child
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Community Health Services
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Female
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Heroin*
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Humans
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Male
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Medical Records
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Methadone / therapeutic use
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Middle Aged
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Morphine Dependence / epidemiology*
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Morphine Dependence / therapy
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Self Medication
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Socioeconomic Factors
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Substance Withdrawal Syndrome / prevention & control
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Substance Withdrawal Syndrome / therapy
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Substance-Related Disorders / epidemiology
Substances
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Heroin
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Amphetamine
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Methadone