1. Department of Medicine, Division of Infectious Diseases, Vanderbilt University Medical Center
2. Center for LGBT Health Research, Graduate School of Public Health, University of Pittsburgh
3. Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh
4. Department of Human Development and Family Sciences, University of Connecticut
5. Department of Sociomedical Sciences, Mailman School of Public Health, Columbia University
6. Department of Behavioral and Community Health Sciences, Graduate School of Public Health, University of Pittsburgh