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HIV Infections
Substance-Related Disorders
Depressive Disorder
Mental Disorders
Seasonal Affective Disorders
Highly Active Antiretroviral Therapy
Phototherapy
Preventive Health Services
CD4 Lymphocyte Count
Epidemiologic Research Designs
United States
Cross-Sectional Studies
Seasons
Regression Analysis
Research Subjects
Program Evaluation
Cost Benefit Analysis
Mandatory Programs
RNA, Viral
Needle-Exchange Programs
Co-Publications
6
5
4
3
2
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