1. The Lighthouse Studies at Peer Point, Departments of Health, Behavior and Society, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
2. Center for Surgery and Public Health, Harvard Medical School, Harvard T.H. Chan School of Public Health, Boston, Massachusetts.
3. Department of Surgery, Brigham and Women's Hospital, Boston, Massachusetts.
4. Department of Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland.
5. Department of General Internal Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
6. Department of Health Policy and Management, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland.
7. Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
8. Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts.