1. Yale University School of Medicine; New Haven CT USA
2. Center for Interdisciplinary Research on AIDS; Yale University School of Public Health; New Haven CT USA
3. VA Connecticut Health Care System; West Haven CT USA
4. National Institute on Alcohol Abuse and Alcoholism; HIV/AIDS Program; Bethesda MD USA
5. University of Washington; Seattle WA USA
6. Yale University School of Public Health; New Haven CT USA
7. DC Veterans Affairs Medical Center and George Washington University; Washington DC USA
8. Veterans Affairs Pittsburgh Healthcare System and University of Pittsburgh; Pittsburgh PA USA
9. Brown University School of Public Health; Providence RI USA
10. Michael E. DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
11. Boston University Schools of Medicine and Public Health; Boston MA USA