1. Department of Health Policy and Management, University of Pittsburgh Graduate School of Public Health, Pittsburgh, Pennsylvania
2. Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts
3. Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, Boston, Massachusetts
4. Division of General Internal Medicine and Primary Care, Brigham and Women’s Hospital, Boston, Massachusetts
5. General Medicine and Primary Care, Beth Israel Deaconess Medical Center, Boston, Massachusetts