1. Department of Medicine, University of California, San Francisco
2. Department of Medicine, San Francisco Veterans Affairs (VA) Health Care System, San Francisco, California
3. Division of Cardiology, University of Michigan, Ann Arbor
4. Cardiology Section, Ann Arbor VA Health Care System, Ann Arbor, Michigan
5. Geriatric Cardiology Section, Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
6. Geriatric, Research, and Clinical Center, VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvania