1. Department of Medicine, University of Minnesota, Minneapolis
2. Division of Epidemiology & Community Health, University of Minnesota, Minneapolis
3. Center for Chronic Disease Outcomes Research, VA Health Care System, Minneapolis, Minnesota
4. Department of Medicine, Johns Hopkins University, Baltimore, Maryland
5. Department of Medicine, VA Health Care System, Minneapolis, Minnesota
6. HealthPartners Institute, Bloomington, Minnesota
7. Division of Health Policy & Management, University of Minnesota, Minneapolis
8. Department of Medicine, University of California, San Francisco
9. California Pacific Medical Center Research Institute, San Francisco