1. Department of Epidemiology, Gillings School of Global Public Health, The University of North Carolina at Chapel Hill
2. Department of Epidemiology, Brown University, Providence, Rhode Island
3. Department of Psychiatry, School of Medicine, the University of North Carolina at Chapel Hill
4. Department of Epidemiology, University of Florida, Gainesville
5. Department of Medicine, University of Florida, Gainesville
6. Department of Medicine, School of Medicine, Johns Hopkins University, Baltimore, Maryland
7. Department of Psychiatry, School of Medicine, University of California, San Diego
8. The Fenway Institute, Fenway Community Health, Boston, Massachusetts
9. Department of Psychiatry, Harvard Medical School, Boston, Massachusetts
10. Department of Psychiatry, Massachusetts General Hospital, Boston
11. Department of Medicine, University of Alabama at Birmingham
12. UAB Center for AIDS Research, University of Alabama at Birmingham