1. Geriatric Research Education and Clinical Center, Veterans Affairs Puget Sound Health Care Center, Seattle, Washington, USA
2. Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
3. Health Services Research and Development, Puget Sound VA Medical Center, Seattle, Washington, USA
4. Department of Medicine, University of Washington School of Medicine, Seattle, Washington, USA
5. Geriatric Medicine, Division of General Medical Disciplines, Stanford University School of Medicine, Stanford, California, USA
6. Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, Washington, USA