1. Department of Behavioral and Social Health Sciences, Brown University School of Public Health, Providence, Rhode Island.
2. Department of Epidemiology, Brown University School of Public Health, Providence, Rhode Island.
3. Center for Health Equity Research, Brown University, Providence, Rhode Island.
4. Department of Psychiatry and Human Behavior, Alpert Medical School, Brown University, Providence, Rhode Island.
5. Division of Adolescent Medicine, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.
6. Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
7. The Fenway Institute, Fenway Health, Boston, Massachusetts.
8. Division of General Pediatrics, Boston Children's Hospital/Harvard Medical School, Boston, Massachusetts.
9. Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.