1 Cardiac Electrophysiology, Division of Cardiovascular Medicine, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania; Cardiology Department, Rouen University Hospital, Rouen, France.
2 Cardiac Electrophysiology, Division of Cardiovascular Medicine, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania.
3 Cardiology Department, Rouen University Hospital, Rouen, France.
4 Section of Cardiac Pacing and Electrophysiology, Heart and Vascular Institute, Cleveland Clinic Foundation, Ohio.
5 Cardiac Electrophysiology, Division of Cardiovascular Medicine, Department of Medicine, Hospital of the University of Pennsylvania, Philadelphia, Pennsylvania. Electronic address: matthew.hyman@pennmedicine.upenn.edu.