1. Texas Cardiac Arrhythmia Institute Austin Texas USA
2. Electrophysiology Section, Division of Cardiology Northwestern University Medical Center Chicago Illinois USA
3. Electrophysiology Section, Division of Cardiology University of Colorado Denver Colorado USA
4. Electrophysiology Section, Division of Cardiology Hospital of the University of Pennsylvania Philadelphia Pennsylvania USA
5. Electrophysiology Section, Division of Cardiology Mayo Clinic Rochester Minnesota USA
6. Sri Jayadeva Institute of Cardiovascular Science and Research Bengaluru India
7. Electrophysiology Section, Division of Cardiology Massachusetts General Hospital Boston Massachusetts USA