1. Department of Pediatrics Faculty of Medicine Saga University Saga Japan
2. Department of Gastroenterology Kahan Hospital Karatsu Japan
3. Department of Gastroenterology Yamamoto Memorial Hospital Imari Japan
4. Department of Gastroenterology Imamura Hospital Tosu Japan
5. Department of Gastroenterology ImariArita Kyoritsu Hospital Nishimatsuura Japan
6. Department of Gastroenterology Ureshino Medical Center Ureshino Japan
7. Department of Gastroenterology Fujioka Hospital Saga Japan
8. Department of Pediatrics Hyogo College of Medicine Nishinomiya Japan