1. Centre for Haemato-Oncology, Barts Cancer Institute, London, United Kingdom;
2. Centre for Molecular Oncology, Barts Cancer Institute, London, United Kingdom;
3. Laboratory of Hematology, Biology and Pathology Center, Centre Hospitalier Régional Universitaire of Lille, Lille, France;
4. University of Lille Nord de France, Lille, France;
5. Inserm, UMR387, Team 3, Cancer Research Institute of Lille, Lille, France;
6. 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Budapest, Hungary;
7. School of Medicine, Cardiff University, Cardiff, United Kingdom;
8. Clinic of Hematology, Clinical Center of Vojvodina, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia;
9. Northern Institute for Cancer Research, Newcastle University, Newcastle upon Tyne, United Kingdom;
10. The Institute of Cancer Research, Department of Haemato-Oncology, Sutton, United Kingdom;
11. Department of Hematology, International Medical Center, Saitama Medical University, Hidaka, Japan;
12. Department of Hematology, National Kyushu Cancer Center, Fukuoka, Japan;
13. Unit for Special laboratory Diagnostics, University Children's Hospital University Medical Center, Ljubljana, Slovenia;
14. Unit for Hematology and Oncology, University Children's Hospital University Medical Center, Ljubljana, Slovenia;
15. Department of Haematology, Great Ormond St Hospital, London, United Kingdom;
16. Department of Haematology, University College London Cancer Institute, London, United Kingdom;
17. Department of Hematology, Lyon Sud Hospital, Pierre-Bénite, France;
18. Institute of Pediatric Hematology and Oncology, Lyon Hospital, Lyon, France;
19. Department of Internal Medicine III, University of Ulm, Ulm, Germany;
20. Hematology/Oncology, Department for Clinical Research and Pediatrics, University Hospital Berne and University Berne, Berne, Switzerland;
21. Department of Medicine/Hematology and Oncology, University of Muenster, Muenster, Germany;
22. Institute of Human Genetics, Hannover Medical School, Hannover, Germany;
23. Genome Centre, Barts and the London School of Medicine and Dentristry, London, United Kingdom;
24. The Finsen Laboratory, Rigshospitalet, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark;
25. Biotech Research and Innovation Centre, University of Copenhagen, Copenhagen, Denmark;
26. Danish Stem Cell Centre (DanStem) Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark;
27. Medical Research Council Molecular Haematology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, Oxford, United Kingdom;
28. Division of Hematology and Hematological Malignancies, Foothills Medical Centre, Calgary, Canada; and
29. Centre for Paediatrics, Blizard Institute, Barts and the London School of Medicine and Dentistry, London, United Kingdom