1. From the Health Services Research and Development Center of Excellence (B.K.N.), Ann Arbor VA Medical Center, Ann Arbor, Mich; Department of Internal Medicine, Division of Cardiovascular Disease (B.K.N., E.R.B.), University of Michigan Medical School, Ann Arbor, Mich; Section of Health Policy and Administration, Department of Epidemiology and Public Health (H.M.K., E.H.B.), Yale University School of Medicine, New Haven, Conn; Section of Cardiovascular Medicine (H.M.K., Y.W.) and the Robert Wood...