1. Neurophysiology Unit, Cardiac Electrophysiology Research and Training Center, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand;
2. Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai, Thailand;
3. Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai, Thailand;
4. Department of Pharmacology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand;
5. Department of Anesthesiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand;
6. Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand