1. Department of Paediatrics; Hirosaki University Graduate School of Medicine; Hirosaki Japan
2. Cancer Genomics Project; Graduate School of Medicine; The University of Tokyo; Tokyo Japan
3. Department of Pathology and Tumour Biology; Graduate School of Medicine; Kyoto University; Kyoto Japan
4. Frontier Science Research Centre; University of Miyazaki; Miyazaki Japan
5. Division of Haematology and Oncology; Shizuoka Children's Hospital; Shizuoka Japan
6. Department of Paediatrics; Saitama National Hospital; Wako Japan
7. Laboratory of DNA Information Analysis; Human Genome Centre; Institute of Medical Science; The University of Tokyo; Tokyo Japan
8. Laboratory of Sequence Analysis; Human Genome Centre; Institute of Medical Science; The University of Tokyo; Tokyo Japan
9. Department of Transfusion Medicine and Cell Processing; Tokyo Women's Medical University; Tokyo Japan
10. Department of Perinatal and Paediatric Medicine; Graduate School of Medical Sciences; Kyushu University; Fukuoka Japan
11. Department of Safety Research on Blood and Biological Products; National Institute of Infectious Diseases; Tokyo Japan
12. Department of Transfusion; Omori Hospital; Toho University; Tokyo Japan
13. Department of Haematology and Oncology; Osaka City General Hospital; Osaka Japan
14. Department of Paediatrics; University of Yamanashi; Kofu Japan
15. Department of Paediatrics; Nishi-Kobe Medical Centre; Kobe Japan
16. Department of Paediatrics; Shinshu University School of Medicine; Matsumoto Japan
17. Division of Haematology; National Centre for Child Health and Development; Tokyo Japan
18. Department of Paediatrics; Kagoshima University; Kagoshima Japan
19. Department of Paediatrics; Graduate School of Medicine; Kyoto University; Kyoto Japan
20. Department of Paediatrics; Nagoya University Graduate School of Medicine; Nagoya Japan