1. Department of Paediatrics Gunma University Graduate School of Medicine Maebashi Japan
2. Department of Haematology and Oncology Gunma Children's Medical Centre Shibukawa Japan
3. Clinical Research Centre National Hospital Organization Nagoya Medical Centre Nagoya Japan
4. Department of Paediatrics Yokohama City University Hospital Kanagawa Japan
5. Department of Paediatric Haematology and Oncology Research National Research Institute for Child Health and Development Tokyo Japan
6. Department of Paediatrics Tokyo Metropolitan Cancer and Infectious Diseases Centre Komagome Hospital Tokyo Japan
7. Division of Leukaemia and Lymphoma Children’s Cancer Centre National Centre for Child Health and Development Tokyo Japan
8. Department of Paediatrics St Marianna University School of Medicine Kawasaki Japan
9. Department of Paediatrics National Hospital Organization Osaka National Hospital Osaka Japan
10. Department of Paediatrics Shiga University of Medical Science Otsu Japan
11. Department of Human Health Sciences Kyoto University Graduate School of Medicine Kyoto Japan
12. Department of Medical Technology Kyorin University Faculty of Health Sciences Mitaka Japan
13. Institute of Physiology and Medicine Jobu University Takasaki Japan