1. Department of Cardiopulmonary Function Test, Henan Provincial People's HospitalPeople's Hospital of Zhengzhou University Zhengzhou China
2. Division of Electrophysiology, Texas Cardiac Arrhythmia InstituteSt. David's Medical Center Austin Texas
3. Department of Internal MedicineDell Medical School Austin Texas
4. Department of CardiologyHacettepe University Faculty of Medicine Ankara Turkey
5. Department of Medicine (Cardiology), Albert Einstein College of MedicineMontefiore Hospital New York City New York
6. Division of Interventional Electrophysiology, Interventional ElectrophysiologyScripps Clinic San Diego California
7. Department of Electrophysiology, Metro Health Medical CenterCase Western Reserve University School of Medicine Cleveland Ohio
8. Division of CardiologyStanford University Stanford California