1. Division of Cardiovascular Disease, Department of Internal Medicine (S.S., T.C., B.K.N.), University of Michigan, Ann Arbor.
2. Center for Clinical Management Research (M.H.), VA Ann Arbor Health Care System, MI.
3. Geriatric Research and Clinical Center (A.V.), VA Ann Arbor Health Care System, MI.
4. Division of Geriatric and Palliative Medicine, Department of Internal Medicine (M.J.S.), University of Michigan, Ann Arbor.
5. Division of Cardiology, Department of Medicine, University of Colorado, Aurora (C.K.M.I., P.M.H.).
6. Department of Internal Medicine, Institute for Social Research (K.M.L.), University of Michigan, Ann Arbor.