1. Division of Epidemiology & Community Health, School of Public Health, and
2. Department of Epidemiology and
3. Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, Georgia
4. Department of Neurology, University of Minnesota, Minneapolis, Minnesota
5. Department of Neurology, Mayo Clinic, Rochester, Minnesota
6. Department of Neurology, Johns Hopkins University, Baltimore, Maryland; and
7. Department of Geriatrics/Gerontology and
8. Department of Neurology, University of Mississippi Medical Center, Jackson, Mississippi