1. Emory University Rollins School of Public Health, Atlanta, GA, USA
2. Emory University School of Medicine, Atlanta, GA, USA
3. University of Georgia, Atlanta, GA, USA
4. Emory University School of Nursing, Atlanta, GA, USA
5. Birmingham/Atlanta VA Geriatric Research Education and Clinical Center, Atlanta, GA, USA
6. Department of Sociology, Emory University, Atlanta, GA, USA
7. Center for Visual and Neurocognitive Rehabilitation, Atlanta, GA, USA
8. Atlanta VA Health Care System, Atlanta, GA, USA