1. Center for Health Promotion and Health Equity, Brown University School of Public Health, Providence, Rhode Island, USA.
2. Department of Psychiatry and Human Behavior, Warren Alpert Medical School, Brown University, Providence, Rhode Island, USA.
3. Department of Behavioral and Social Health Sciences and Brown University School of Public Health, Providence, Rhode Island, USA.
4. Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island, USA.
5. The Fenway Institute, Fenway Health, Boston, Massachusetts, USA.
6. Department of Epidemiology, UCLA Fielding School of Public Health, Los Angeles, California, USA.
7. Department of Psychiatry and Biobehavioral Sciences, UCLA Geffen School of Medicine, Los Angeles, California, USA.