1. Department of Cardiology, Minneapolis VA Health Care System, Minneapolis, MN
2. Department of Medicine, University of Minnesota, Minneapolis, MN
3. Division of Epidemiology & Community Health, University of Minnesota, Minneapolis, MN
4. HealthPartners Institute, Bloomington, MN
5. Division of Health Policy & Management, University of Minnesota, Minneapolis, MN
6. California Pacific Medical Center Research Institute, San Francisco, CA
7. Division of Preventive Medicine, University of Alabama at Birmingham, AL
8. Center for Chronic Disease Outcomes Research, Minneapolis VA Health Care System, Minneapolis, MN