1. Division of Gerontology and Geriatric Medicine, Department of Medicine, University of Miami School of Medicine and Geriatric Research, Education, and Clinical Center, Veterans Affairs Medical Center, and Stein Gerontological Institute, Miami, Florida;
2. University of Arkansas for Medical Sciences, Little Rock, Arkansas; and
3. Donald W. Reynolds Department of Geriatrics, University of Arkansas for Medical Sciences, and Geriatric Research, Education, and Clinical Center, Central Arkansas Veterans Healthcare System, Little Rock, Arkansas.