1. Division of Cardiology, Department of Medicine, Faculty of Medicine Vajira Hospital Navamindradhiraj University Bangkok Thailand
2. Division of Cardiology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital Thai Red Cross Society Bangkok Thailand
3. Division of Cardiology University of California Riverside Riverside California USA
4. Department of Pediatrics, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital Thai Red Cross Society Bangkok Thailand
5. Department of Medicine Amita Health St. Francis Evanston Illinois USA
6. Department of Medicine Mayo Clinic Rochester Minnesota USA
7. Center of Excellence in Arrhythmia Research Chulalongkorn University, Department of Medicine, Faculty of Medicine Chulalongkorn University Bangkok Thailand