1. Harvard Medical School, Boston, Massachusetts.
2. Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
3. The Fenway Institute, Fenway Health, Boston, Massachusetts.
4. Department of Population, Family, and Reproductive Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
5. Division of General Pediatrics, Boston Children's Hospital/Harvard Medical School, Boston, Massachusetts.
6. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
7. Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
8. Department of Psychology, The George Washington University, Washington, District of Columbia.
9. Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts.