1. GRECC, Veterans Affairs Puget Sound Health Care System and University of Washington School of Medicine, Division of Gerontology and Geriatric Medicine, Department of Internal Medicine, Seattle, WA, USA
2. GRECC, Veterans Affairs Medical Center-St. Louis and Saint Louis University School of Medicine, Division of Geriatrics, Department of Internal Medicine, St. Louis, MO, USA
3. Department of Pharmacology 1, Nagasaki University School of Medicine, Nagasaki, Japan