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HIV Infections
Substance-Related Disorders
Acquired Immunodeficiency Syndrome
New York City
HIV Seropositivity
HIV Seronegativity
Prospective Studies
Risk Factors
Cohort Studies
Cross-Sectional Studies
Multivariate Analysis
Longitudinal Studies
Viral Load
Intravenous Substance Abuse
CD4 Lymphocyte Count
Highly Active Antiretroviral Therapy
HIV-1
Methadone
Anti-HIV Agents
Pregnancy
Co-Publications
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