1. Department of Pediatric Electrophysiology, Pediatric Medical Care Center, Osaka City General Hospital
2. Department of Pediatrics Cardiology, Saitama Medical University International Medical Hospital
3. Department of Pediatric Cardiology, Shizuoka Children’s Hospital
4. Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center
5. Department of Cardiovascular Surgery, Fukuoka Children’s Hospital
6. Department of Cardiology, Fukuoka Children’s Hospital
7. Department of Pediatric Cardiology, Nagano Children’s Hospital