1. From the Division of General Internal Medicine and the Department of Surgery and Center for Surgery and Public Health, Brigham and Women's Hospital; the Departments of Health Care Policy and Ambulatory Care and Prevention, Harvard Medical School, Boston, MA; Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD; the Division of Clinical and Administrative Pharmacy, University of Iowa, Iowa City, IA; RAND, Santa Monica; and the Division of General Internal Medicine,...