No abstract available
Publication types
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Comparative Study
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Multicenter Study
MeSH terms
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Chi-Square Distribution
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Female
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Humans
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Male
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Negotiating / methods*
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Regression Analysis
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Self-Help Groups / statistics & numerical data
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Sex Characteristics*
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Substance Abuse Treatment Centers / statistics & numerical data
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Substance-Related Disorders / ethnology*
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Substance-Related Disorders / therapy*
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Treatment Outcome