1. Pediatric Heart Center, Queen Sirikit National Institute of Child Health, College of MedicineRangsit University Bangkok Thailand
2. Department of Pediatric CardiologyPenang General Hospital Penang Malaysia
3. Faculty of Medicine, Department of PediatricsPrince of Songkla University Songkhla Thailand
4. Department of Pediatrics, Faculty of MedicineChiangmai University Thailand
5. Department of PediatricsSunpasithiprasong Hospital Ubon Ratchathani Thailand
6. Department of Internal Medicine, Rajavithi Hospital, College of MedicineRangsit University Bangkok Thailand