1. Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN
2. Department of Biostatistics, Boston University, Boston, MA
3. NHLBI and Boston University's Framingham Heart Study, Framingham, MA
4. Section of Cardiovascular Medicine, Department of Medicine, Boston University, Boston, MA
5. Department of Biostatistics, University of Washington, Seattle, WA
6. Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, MA
7. Cardiac Arrhythmia Service, Massachusetts General Hospital, Boston, MA
8. Cardiovascular Division, Department of Medicine, University of Minnesota Medical School, Minneapolis, MN
9. Cardiology Division, Department of Medicine, University of Massachusetts Medical School, Worcester, MA
10. Epidemiological Cardiology Research Center, Department of Epidemiology and Prevention, Wake Forest School of Medicine, Winston Salem, NC
11. School of Population Health, University of Queensland, Brisbane, Queensland, Australia
12. Department of Cardiology/Medicine, Johns Hopkins University, Baltimore, MD
13. Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD
14. Department of Epidemiology, University of Washington, Seattle, WA
15. Department of Epidemiology, Boston University School of Public Health, Boston, MA