1. Yale University School of Medicine, Department of Internal Medicine, New Haven, CT
2. VA Connecticut Healthcare System, West Haven, CT
3. National Institutes of Health, National Institute on Alcohol Abuse and Alcoholism, Rockville, MD
4. VA Medical Center and George Washington University Medical Center, Washington, DC
5. VA Greater Los Angeles Healthcare System, David Geffen School of Medicine at UCLA, Los Angeles, CA
6. VA Central Western Massachusetts, Northampton, MA
7. University of Massachusetts Medical School, Worcester, MA
8. Hennepin County Medical Center, Minneapolis, MN
9. Yale University School of Public Health, Center for Interdisciplinary Research on AIDS, New Haven, CT