1. Department of Internal Medicine, Wake Forest School of Medicine, Winston‐Salem, NC
2. Department of Cardiovascular Sciences, East Carolina Heart Institute, Brody School of Medicine, East Carolina University, Greenville, NC
3. Departments of Medicine and Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD
4. Division of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN
5. Cardiovascular Health Research Unit and Department of Epidemiology, University of Washington and Group Health Research Institute, Seattle, WA
6. Epidemiological Cardiology Research Center (EPICARE), Departments of Epidemiology and Prevention and Internal Medicine, Section on Cardiology, Wake Forest School of Medicine, Winston Salem, NC