1. Schaeffer Center for Health Policy and Economics, University of Southern California, Los Angeles2RAND Corporation, Santa Monica, California
2. Division of General Internal Medicine and Primary Care, Brigham and Women’s Hospital, Boston, Massachusetts4Harvard Medical School, Boston, Massachusetts
3. Anderson School of Management, University of California, Los Angeles6Department of Psychology, David Geffen School of Medicine at UCLA, Los Angeles
4. Division of General Internal Medicine and Primary Care, Brigham and Women’s Hospital, Boston, Massachusetts4Harvard Medical School, Boston, Massachusetts7RAND Corporation, Boston, Massachusetts
5. Northwestern University, Chicago, Illinois
6. Schaeffer Center for Health Policy and Economics, University of Southern California, Los Angeles