1. Research Institute, California Pacific Medical Center, San Francisco
2. Department of Epidemiology and Biostatistics, University of California, San Francisco
3. Department of Medicine, Oregon Health and Sciences University, Portland
4. Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System, Minnesota
5. Division of Epidemiology and Community Health, University of Minnesota, Minneapolis
6. Department of Medicine, University of Minnesota, Minneapolis
7. Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pennsylvania
8. Sticht Center for Healthy Aging and Alzheimer’s Prevention Wake Forest School of Medicine, Winston-Salem, North Carolina