1. Department of Medicine, University of Minnesota, Minneapolis
2. Division of Epidemiology and Community Health, University of Minnesota, Minneapolis
3. Center for Chronic Disease Outcomes Research, VA Health Care System, Minneapolis, Minnesota
4. California Pacific Medical Center Research Institute, San Francisco
5. Department of Epidemiology and Biostatistics, University of California, San Francisco
6. Department of Health Care Organization and Policy, University of Alabama at Birmingham
7. Department of Epidemiology, University of Pittsburgh, Pennsylvania
8. Department of Medicine, Stanford University, California
9. Department of Psychiatry, University of California, San Francisco
10. Department of Neurology, University of California, San Francisco
11. Department of Epidemiology, University of California, San Francisco
12. Bone and Mineral Unit, Oregon Health and Science University, Portland
13. HealthPartners Institute, Bloomington, Minnesota
14. Division of Health Policy and Management, University of Minnesota, Minneapolis