1. Department of Epidemiology, Emory University Rollins School of Public Health, Atlanta, GA, USA
2. Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, MD, USA
3. Division of Cardiology, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
4. Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
5. Division of Cardiovascular Research, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
6. Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
7. Cardiovascular Health Research Unit and Department of Epidemiology, University of Washington, Seattle, WA, USA