1. Cardiac Electrophysiology Research and Training Center Faculty of Medicine, Chiang Mai University Chiang Mai Thailand
2. Faculty of Biological Sciences The University of Manchester Manchester United Kingdom
3. Cardiac Electrophysiology Unit, Department of Physiology Faculty of Medicine, Chiang Mai University Chiang Mai Thailand
4. Center of Excellence in Cardiac Electrophysiology Research Chiang Mai University Chiang Mai Thailand
5. Department of Oral Biology and Diagnostic Science Faculty of Dentistry, Chiang Mai University Chiang Mai Thailand
6. Department of Medicine University of Colorado Denver Colorado