1. Massachusetts Institute of Technology, Cambridge
2. Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts
3. Heart and Vascular Center, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
4. Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire
5. Division of General Internal Medicine and Primary Care, Department of Medicine, Brigham and Women’s Hospital, Boston, Massachusetts
6. Division of General Internal Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts