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Male Homosexuality
Bisexuality
Sexual Behavior
Risk-Taking
Alcohol Drinking
Health Knowledge, Attitudes, Practice
Substance-Related Disorders
Alcoholism
HIV Infections
Alcohol-Related Disorders
San Francisco
Cross-Sectional Studies
Health Surveys
Urban Population
Longitudinal Studies
Risk Factors
Street Drugs
Psychotropic Drugs
Mental Recall
Diagnosis, Dual (Psychiatry)
Co-Publications
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