1. Department of Pediatric Oncology/Hematology, Erasmus MC-Sophia Children’s Hospital, Rotterdam, The Netherlands;
2. Dutch Childhood Oncology Group, the Hague, The Netherlands;
3. Acute Myeloid Leukemia-Berlin-Frankfurt-Münster Study Group, Pediatric Hematology/Oncology, Medical School Hannover, Hannover, Germany;
4. Northern Institute of Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
5. St. Anna Children's Hospital and Children’s Cancer Research Institute, Department of Pediatrics, Medical University of Vienna, Vienna, Austria;
6. Czech Pediatric Hematology/Oncology, Department of Pediatrics, University Hospital, Palacky´s University, Olomouc, Czech Republic;
7. Belgian Society of Paediatric Haematology Oncology, Ghent University Hospital, Department of Pediatric Hematology/Oncology, Ghent, Belgium;
8. Cancer Cytogenetic Laboratory, Pediatric Hematology Oncology Department, Schneider Children's Medical Center of Israel, Petach Tikvah, Israel;
9. St. Jude Children’s Research Hospital, Memphis, TN;
10. Japanese Pediatric Leukemia/Lymphoma Study Group, Department of Pediatrics, Tokyo Medical and Dental University, Tokyo, Japan;
11. Children’s Oncology Group, Arcadia, CA;
12. Children’s Hospital of Eastern Ontario, Ottawa, ON, Canada;
13. Department of Preventive Medicine, University of Southern California, Los Angeles, CA;
14. Nordic Society for Pediatric Hematology and Oncology, Department of Pediatrics, Aarhus University Hospital Skejby, Aarhus, Denmark;
15. French Leucémie Aique Myeloide Enfant, Hopital Trousseau, Paris, France;
16. Italian Association of Pediatric Hematology Oncology, Clinica Pediatrica, Università Padova, Padova, Italy;
17. Department of Immunology, Erasmus MC, Rotterdam, The Netherlands;
18. Department of Clinical Cytogenetics, The Royal Marsden Hospital and The Institute of Cancer Research, Sutton, United Kingdom;
19. Department of Pathology, Queen Elizabeth Hospital, Hong Kong, China;
20. Department of Pediatrics, Hirosaki University Graduate School of Medicine, Hirosaki, Japan;
21. Division of Hematology/Oncology, Children’s Hospital of Michigan, Detroit, MI;
22. Department of Pediatric Oncology, Starship Children’s Hospital, Auckland, New Zealand; and
23. Clinic for Children’s Diseases, Centre for Oncology/Haematology, Vilnius University, Vilnius, Lithuania