[1] Chiang Mai Univ, Fac Med, Dept Pediat, Div Pediat Endocrinol & Metab, Chiang Mai, Thailand
[2] Chiang Mai Univ, Fac Med, Cardiac Electrophysiol Res & Training Ctr, Neurophysiol Unit, Chiang Mai, Thailand
[3] Chiang Mai Univ, Ctr Excellence Cardiac Electrophysiol Res, Chiang Mai, Thailand
[4] Chiang Mai Univ, Fac Med, Dept Physiol, Cardiac Electrophysiol Unit, Chiang Mai, Thailand
[5] Chiang Mai Univ, Fac Dent, Dept Oral Biol & Diagnost Sci, Suthep Rd, Chiang Mai 50200, Thailand