1. Department of Electrophysiology, Texas Cardiac Arrhythmia Institute , 3000 N. I-35, Suite 720, Austin, TX 78705 , USA
2. Department of Cardiology, Willem Einthoven Center of Arrhythmia Research and Management, Leiden University Medical Center , Leiden , the Netherlands
3. Department of Cardiac Electrophysiology and Arrhythmology, San Raffaele University Hospital , Milan , Italy
4. Shanghai Chest Hospital, Shanghai Jiao Tong University , Shanghai , China
5. Sheba Medical Center, Tel HaShomer, Israel and the Faculty of Medicine, Tel Aviv University , Tel Aviv , Israel
6. Cardiac Electrophysiology and Pacing, Cleveland Clinic , Cleveland, OH , USA
7. Heart and Diabetes Center NRW, Ruhr University Bochum , Bad Oeynhausen , Germany
8. University Hospital Basel, University of Basel , Basel , Switzerland
9. Montefiore Health System, Einstein Medical School , New York , USA