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HIV Infections
Substance-Related Disorders
Opioid-Related Disorders
United States
Highly Active Antiretroviral Therapy
Opiate Substitution Treatment
Office Visits
Young Adult
European Continental Ancestry Group
Cross-Sectional Studies
Risk Factors
Retrospective Studies
Quality of Health Care
Physician Patient Relations
Sexism
Communication
Anti-HIV Agents
Buprenorphine
Anti-Retroviral Agents
Street Drugs
Co-Publications
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