1. University of Miami School of Medicine Miami FL USA
2. San Francisco School of Medicine University of California San Francisco CA USA
3. Berkeley School of Social Welfare University of California Berkeley CA USA
4. San Diego School of Medicine University of California La Jolla CA USA
5. Departments of Family Medicine and Psychiatry Los Angeles David Geffen School of Medicine University of California Los Angeles CA USA
6. Department of Psychology San Diego State University San Diego CA USA
7. San Francisco AIDS Foundation San Francisco CA USA
8. Department of Medical Social Sciences Northwestern University Chicago CA USA