1. Department of Health Policy and Management, Harvard T. H. Chan School of Public Health, Boston, Massachusetts2Division of General Internal Medicine, Brigham and Women’s Hospital, Boston, Massachusetts3Harvard Global Health Institute, Cambridge, Massachusetts
2. Department of Health Policy and Management, Harvard T. H. Chan School of Public Health, Boston, Massachusetts2Division of General Internal Medicine, Brigham and Women’s Hospital, Boston, Massachusetts3Harvard Global Health Institute, Cambridge, Massachusetts4VA Boston Healthcare System, Boston, Massachusetts
3. Department of Health Policy and Management, Harvard T. H. Chan School of Public Health, Boston, Massachusetts5Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts6National Bureau of Economic Research, Cambridge, Massachusetts7Harvard Kennedy School, Cambridge, Massachusetts
4. Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts
5. Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts6National Bureau of Economic Research, Cambridge, Massachusetts8Department of Medicine, Massachusetts General Hospital, Boston