1. Department of Cardiology University of California Riverside Riverside California USA
2. Division of Cardiovascular Medicine, Department of Medicine, Cardiac Center, Faculty of Medicine Chulalongkorn University and King Chulalongkorn Memorial Hospital, Thai Red Cross Society Bangkok Thailand
3. Department of Medicine Mayo Clinic Rochester Minnesota USA
4. Department of Internal Medicine University of Arizona Tucson Arizona USA
5. Department of Medicine, David Geffen School of Medicine University of California, Los Angeles Los Angeles California USA
6. Department of Medicine, Section of Cardiovascular Medicine Wake Forest University School of Medicine Winston‐Salem North Carolina USA
7. Division of Cardiac Electrophysiology University of Michigan Health Care Ann Arbor Michigan USA