1. Division of Cardiovascular Medicine, Department of Medicine, Faculty of Medicine Chulalongkorn University Bangkok Thailand
2. Cardiac Center King Chulalongkorn Memorial Hospital The Thai Red Cross Society Bangkok Thailand
3. Division of Pediatric Cardiology, Department of Pediatrics, Faculty of Medicine Chulalongkorn University Bangkok Thailand
4. Pediatric Cardiac Surgery Foundation Bangkok Thailand
5. Division of Cardiothoracic Surgery, Department of Surgery, Faculty of Medicine Chulalongkorn University Bangkok Thailand