1. Yale School of Public Health and Center for Interdisciplinary Research on AIDS, New Haven, CT
2. Northeastern University, Department of Health Sciences, Bouve College of Health Sciences, Boston, MA
3. Harvard School of Public Health, Department of Health Policy and Management, Boston, MA
4. Harvard School of Public Health, Department of Society, Human Development and Health, Boston, MA
5. Boston University School of Public Health, Department of Social and Behavioral Sciences, Boston, MA