1 From the Division of General Internal Medicine and Primary Care, Brigham and Women's Hospital (J.A.R., D.W.B.), Harvard Medical School (J.A.R., D.W.B.), and the Department of Health Policy and Management, Harvard T.H. Chan School of Public Health (D.W.B.), Boston, and the Petrie-Flom Center for Health Law Policy, Biotechnology, and Bioethics, Harvard Law School, Cambridge (C.S.) - all in Massachusetts.