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Adolescent Behavior
Risk-Taking
Sexual Behavior
Health Knowledge, Attitudes, Practice
Condoms
Parent-Child Relations
Child Behavior
Questionnaires
Risk Reduction Behavior
African Americans
Urban Population
Poverty
Longitudinal Studies
Intervention Studies
HIV Infections
Acquired Immunodeficiency Syndrome
Substance-Related Disorders
United States
Baltimore
Health Education
Co-Publications
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