1. Department of Cardiovascular Medicine Mayo Clinic Rochester Minnesota USA
2. Department of Medicine, Division of Cardiovascular Medicine Cardiac Center, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society Bangkok Thailand
3. Department of Medicine Faculty of Medicine, Center of Excellence in Arrhythmia Research Chulalongkorn University, Chulalongkorn University Bangkok Thailand
4. Department of Military and Community Medicine Phramongkutklao College of Medicine Bangkok Thailand
5. Department of Medicine Mayo Clinic Rochester Minnesota USA
6. Division of Cardiac Electrophysiology University of Michigan Health Care Ann Arbor Michigan USA
7. Pacific Rim Electrophysiology Research Institute Bumrungrad Hospital Bangkok Thailand