1. Research and Development Service, VA Medical Center, St. Louis, MO, USA
2. Department of Internal Medicine, Division of Geriatric Medicine, St. Louis University School of Medicine, St. Louis, MO, USA
3. Geriatric Research Educational and Clinical Center (GRECC), Veterans Affairs Puget Sound Health Care System, Seattle, WA, USA
4. Department of Internal Medicine, Division of Gerontology and Geriatric Medicine, University of Washington School of Medicine, Seattle, WA, USA
5. Department of Internal Medicine, Division of Endocrinology, St. Louis University School of Medicine, St. Louis, MO, USA