1. Division of Cardiology University of California Riverside, Riverside California USA
2. Department of Internal Medicine Mayo Clinic Rochester Minnesota USA
3. Division of Cardiovascular Medicine, Department of Medicine, Faculty of Medicine Chulalongkorn University and King Chulalongkorn Memorial Hospital Bangkok Thailand
4. Cardiac Center, King Chulalongkorn Memorial Hospital Bangkok Thailand
5. Center of Excellence in Arrhythmia Research Chulalongkorn University, Department of Medicine, Faculty of Medicine Chulalongkorn University Bangkok Thailand
6. Department of Cardiology Loma Linda University Loma Linda California
7. Division of Cardiovascular Medicine, Department of Internal Medicine, University of Utah School of Medicine Salt Lake City Utah USA
8. Division of Cardiovascular Medicine, Department of Internal Medicine University of Michigan Medical School Ann Arbor Michigan USA