1. The Fenway Institute, Fenway Health, Boston, MA, USA
2. Harvard T.H. Chan School of Public Health, Boston, MA, USA
3. HIV/AIDS Bureau, Health Resources and Services Administration, Rockville, MD, USA
4. Boston University School of Public Health, Boston, MA, USA
5. Bouve College of Health Sciences, Northeastern University, Boston, MA, USA
6. AIDS United, Washington, DC, USA
7. Center for AIDS Prevention Studies, University of California, San Francisco, CA, USA
8. Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
9. Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA