HIV Infections
Hepatitis C
Depression
Highly Active Antiretroviral Therapy
CD4 Lymphocyte Count
Intravenous Substance Abuse
Patient Compliance
Questionnaires
France
Italy
Cameroon
Anti-HIV Agents
Buprenorphine
Risk Factors
Cohort Studies
Longitudinal Studies
Cross-Sectional Studies
Time Factors
Logistic Models
HIV-1
Co-Publications
42
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9
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