1. School of Medicine, University of California, San Francisco, San Francisco, California, USA.
2. Department of Health Behavior and Biological Sciences, Center for Sexuality and Health Disparities, University of Michigan School of Nursing, Ann Arbor, Michigan, USA.
3. Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA.
4. Division of General Internal Medicine, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
5. General Medicine, Harvard Medical School, Boston, Massachusetts, USA.
6. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA.
7. The Fenway Institute, Fenway Health, Boston, Massachusetts, USA.
8. Department of Family and Community Medicine, University of California, San Francisco, San Francisco, California, USA.
9. Department of Behavioral and Social Sciences, Brown University School of Public Health, Providence, Rhode Island, USA.
10. Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA.
11. Center for Health Equity Research, Brown University, Providence, Rhode Island, USA.