1. Division of Cardiovascular Sciences; National Heart, Lung, and Blood Institute; Bethesda; MD
2. Laboratory of Epidemiology, Demography, and Biometry; National Institute on Aging; Bethesda; MD
3. Division of Research; Kaiser Permanente Northern California; Oakland; CA
4. Department of Preventive Medicine; Northwestern University Feinberg School of Medicine; Chicago; IL
5. Division of Epidemiology and Community Health; University of Minnesota; Minneapolis; MN
6. Departments of Nutrition and Epidemiology; University of North Carolina-Chapel Hill; Chapel Hill; NC
7. Departments of Psychiatry, Neurology, and Epidemiology; University of California, San Francisco and San Francisco VA Medical Center; San Francisco; CA