1. From the Department of Health Care Policy, Harvard Medical School (J.Z.A., P.J.W.), the Division of General Medicine and Primary Care, Brigham and Women's Hospital (J.Z.A.), and the Department of Health Policy and Management, Harvard School of Public Health (J.Z.A.) — all in Boston; and the Scientific Institute for Quality of Healthcare, Radboud University Nijmegen Medical Centre, Nijmegen (P.J.W.), and the School for Public Health and Primary Care (CAPHRI), Maastricht University, Maastricht (P.J.W.) —...