1. Research Institute for Clinical Oncology Saitama Cancer Center Saitama Japan
2. Cancer Genomics Division National Cancer Center Research Institute Tokyo Japan
3. Division of Diagnostic Pathology Keio University School of Medicine Tokyo Japan
4. Department of Pathology Kanagawa Children's Medical Center Yokohama Kanagawa Japan
5. Department of Childhood Cancer Data Management Childhood Cancer Center, National Center for Child Health and Development Tokyo Japan
6. Department of Pediatric Surgery Hyogo College of Medicine Nishinomiya Hyogo Japan
7. Department of Pediatric Surgery, Faculty of Medical Sciences Kyushu University Fukuoka Japan
8. Department of Biochemistry and Molecular Biology, Graduate School of Medical Science Kyoto Prefectural University of Medicine Kyoto Japan
9. Department of Pediatrics Nihon University School of Medicine Tokyo Japan
10. Division of Hematology National Center for Child Health and Development Tokyo Japan
11. Department of Pediatric Surgery Hiroshima University Hospital Hiroshima Japan
12. Pediatric Medical Center Ehime Prefectural Central Hospital Matsuyama Ehime Japan
13. Department of Pediatric Surgery Nihon University School of Medicine Tokyo Japan