1. Department of Pediatrics Graduate School of Medicine Kyoto University Kyoto Japan
2. Department of Pediatrics Osaka University Graduate School of Medicine Suita Japan
3. Department of Orthopedic Surgery Okazaki City Hospital Okazaki Japan
4. Department of Pediatric Oncology National Cancer Center Hospital East Kashiwa Japan
5. Department of Pediatric Oncology Fukushima Medical University Hospital Fukushima Japan
6. Department of Radiation Oncology Tokyo Metropolitan Geriatric Hospital Tokyo Japan
7. Department of Pathology Keio University School of Medicine Tokyo Japan
8. Department of Pediatrics Hirosaki University Hospital Hirosaki Japan
9. Department of Pediatrics National Hospital Organization Nagoya Medical Center Nagoya Japan
10. Department of Pediatric Hematology/Oncology Osaka City General Hospital Osaka Japan
11. Department of Orthopedic Surgery Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Okayama Japan
12. Division of Pediatric Oncology Comprehensive Cancer Center, International Medical Center Saitama Medical University Saitama Japan
13. Department of Pediatrics St. Luke's International Hospital Tokyo Japan
14. Department of Hematology and Oncology Children's Cancer Center Kobe Children's Hospital Kobe Japan
15. Department of Orthopedic Surgery Osaka University Graduate School of Medicine Suita Japan
16. Department of Pediatrics Graduate School of Medical and Dental Sciences Kagoshima University Kagoshima Japan
17. Department of Pediatrics and Child Health Nihon University Itabashi Hospital Tokyo Japan