1. Department of Paediatrics Nagoya University Graduate School of Medicine Nagoya Japan
2. Department of Paediatrics Institute of Haematology and Blood Disease Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College Tianjin People’s Republic of China
3. Department of Haematology Oncology Samsung Medical Centre, Sungkyunkwan University School of Medicine Seoul Republic of Korea
4. Department of Paediatrics Chonnam National University Hwasun Hospital, Chonnam National University Medical School Hwasun Republic of Korea
5. Division of Haematology Gachon University Gil Medical Centre, Gachon University College of Medicine Incheon Republic of Korea
6. Department of Haematology NTT Medical Centre Tokyo Tokyo Japan
7. Division of Transfusion Medicine Kanazawa University Hospital Kanazawa Japan
8. Department of Haematology and Respirology Kanazawa University Graduate School of Medical Sciences Kanazawa Japan
9. Department of Haematology Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea Seoul Republic of Korea