1. Division of Cardiovascular Medicine Brigham and Women's Hospital Boston Massachusetts USA
2. Department of Medicine Harvard Medical School Boston MA USA
3. Division of Cardiovascular Medicine, Cardiac Electrophysiology University of Colorado School of Medicine Aurora Colorado USA
4. Division of Cardiovascular Medicine, Center for Arrhythmia Care University of Chicago Chicago Illinois USA
5. Division of Cardiovascular Medicine, Cardiac Electrophysiology Hospital of the University of Pennsylvania Philadelphia Pennsylvania USA
6. Division of Cardiology, Department of Medicine David Geffen School of Medicine at UCLA Los Angeles California USA
7. Cardiovascular Medicine Division University of Utah School of Medicine Salt Lake City Utah USA
8. Montefiore‐Einstein Center for Heart and Vascular Care, Montefiore Medical Center Albert Einstein College of Medicine Bronx New York USA
9. Division of Cardiology, VA Medical Center, Minneapolis MN & University of Minnesot, Department of Medicine Minneapolis Minnesota USA
10. The Kansas City Heart Rhythm Institute Overland Park Kansas USA
11. Division of Cardiology Baltimore VA Medical Center Baltimore Maryland USA
12. Cardiac Electrophysiology Banner ‐ University Medicine Heart Institute Phoenix Arizona USA
13. Department of Medicine Baylor College of Medicine Houston Texas USA
14. Arrhythmia Unit and Electrophysiology Laboratories Milano Italy
15. St. David's Medical Center Texas Cardiac Arrhythmia Institute Austin Texas USA
16. Department of Medicine Vanderbilt Heart and Vascular Institute Nashville Tennessee USA
17. Arrhythmia Unit San Raffaele Hospital Milan Italy