1. Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island
2. Department of Epidemiology, University of North Carolina at Chapel Hill
3. Departments of Behavioral & Social Health Sciences and Epidemiology, Brown University School of Public Health
4. Department of Psychiatry & Human Behavior, Alpert Medical School, Brown University, Providence, Rhode Island
5. Fenway Institute, Fenway Health, Boston, Massachusetts
6. Department of Psychiatry, School of Medicine, University of North Carolina at Chapel Hill, Baltimore, Maryland
7. Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
8. HIV/AIDS Division, San Francisco General Hospital, University of California
9. Department of Psychiatry, Massachusetts General Hospital, Boston
10. Department of Psychiatry, University of California, San Diego
11. Division of Infectious Diseases, School of Medicine, University of North Carolina at Chapel Hill
12. Department of Medicine, School of Medicine, University of Washington, Seattle
13. Department of Medicine and UAB Center for AIDS Research, University of Alabama at Birmingham