1. Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, North Carolina
2. Department of Medicine, University of Pittsburgh, Pennsylvania
3. VA Tennessee Valley Geriatric Research Education Clinical Center (GRECC) and Department of Medicine, Vanderbilt University, Nashville
4. National Institute on Minority Health and Health Disparities, Bethesda, Maryland
5. Durham VA GRECC and Duke University Medical Center, North Carolina
6. National Institute on Aging, Bethesda, Maryland
7. Department of Epidemiology and Public Health, University of Maryland School of Medicine, Baltimore