1. Valley Health System Ridgewood NJ USA
2. Division of Cardiac Electrophysiology, Department of Medicine St. Bernard's Heart & Vascular Center Jonesboro AR USA
3. Department of Medicine St. Vincent Hospital Indianapolis IN USA
4. Department of Medicine Sentara Heart Hospital Norfolk VA USA
5. Department of Medicine, Kaiser Permanente Los Angeles Medical Center Los Angeles CA USA
6. Department of Medicine Nebraska Heart Institute Lincoln NE USA
7. Department of Medicine Northwell Health System New Hyde Park NY USA
8. Boston Scientific St. Paul MN USA
9. Section of Cardiology, Department of Medicine, Heart Rhythm Center University of Chicago USA