1. National Center for Child Health and Development; Tokyo Japan
2. Department of Surgery; Osaka University; Osaka Japan
3. Department of Transplantation Surgery; Jichi Medical University; Tochigi Japan
4. Department of Surgery; Kanagawa Children's Medical Center; Kanagawa Japan
5. Department of Transplantation; Okayama University; Okayama Japan
6. Department of Pediatric Surgery; Kyusyu University; Fukuoka Japan
7. Department of Transplant Surgery; Kumamoto University; Kumamoto Japan
8. Department of Surgery; Kyoto University; Kyoto Japan
9. Department of Pediatric Surgery; Keio University; Tokyo Japan
10. Department of Cell Transplantation and Regenerative Medicine; Tokai University School of Medicine; Kanagawa Japan