1. Division of Cardiology, Department of Medicine Johns Hopkins Medical Institutions Baltimore MD
2. Division of Cardiology University of Massachusetts Chan Medical School Worcester MA
3. Beth Israel Deaconess Medical Center Harvard Medical School Boston MA
4. Harvard T.H. Chan School of Public Health, Harvard Medical School Brigham and Women’s Hospital Boston MA
5. The Johns Hopkins University School of Medicine The Johns Hopkins Bloomberg School of Public Health, and The Welch Center for Prevention, Epidemiology and Clinical Research Baltimore MD
6. Department of Pathology University of Maryland School of Medicine Baltimore MD
7. Geisinger Health Danville PA