1. Rush University Medical Center Chicago Illinois USA
2. Boston University School of Medicine and School of Public Health Boston Massachusetts USA
3. Jacobs School of Medicine and Biomedical Sciences University at Buffalo Buffalo New York USA
4. Division of Hospital Medicine University of California San Francisco California USA
5. Washington University in St. Louis St. Louis Missouri USA
6. Penn State University College of Medicine Hershey Pennsylvania USA
7. Division of Cardiovascular Medicine, College of Medicine University of Florida Gainesville Florida USA
8. The Christ Hospital Women's Heart Center Cincinnati Ohio USA
9. UCLA Cardiac Arrhythmia Center University of California Los Angeles California USA
10. Division of Cardiovascular Medicine, Case Western Reserve University Harrington Heart & Vascular Institute University Hospitals Cleveland Medical Center Cleveland Ohio USA
11. Department of Medicine, Section of Cardiology Emory University School of Medicine Atlanta Georgia USA
12. Cooper Medical School of Rowan University Camden New Jersey USA