1. Hôpital Saint Louis, APHP Université de Paris Cité Paris France
2. EBMT Statistical Unit Leiden The Netherlands
3. EBMT Data Office Leiden The Netherlands
4. Department of Stem Cell Transplantation University Medical Center Hamburg‐Eppendorf Hamburg Germany
5. Department of Internal Medicine, Hematology and Oncology University Hospital Maastricht Maastricht The Netherlands
6. Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation Hannover Medical School Hannover Germany
7. Department of Hematology Helsinki University Hospital Comprehensive Cancer Center Helsinki Finland
8. Department of Hematology and Bone Marrow Transplantation Rambam Health Care Campus Haifa Israel
9. Department of Hematology, CHU Liege University of Liege Liege Belgium
10. Radboud University Medical Centre Nijmegen The Netherlands
11. Department of Hematology, Transplantation and Internal Medicine Medical University of Warsaw Warsaw Poland
12. Department of Haematology University College London Hospitals NHS Trust London UK
13. Trinity College Dublin St. James's Hospital Dublin Ireland
14. Department of Biomedical Data Sciences Leiden University Medical Center Leiden The Netherlands
15. Hematology Department Federico II University of Naples Naples Italy
16. Unit of Bone Marrow Transplantation ‐ Division of Hematology Fondazione IRCCS Policlinico San Matteo Pavia Italy
17. Maria Skłodowska‐Curie National Research Institute of Oncology Gliwice Poland
18. Department of Hematology Hospital Clínico Universitario de Valencia, Instituto de Investigación Sanitaria INCLIVA Valencia Spain
19. Centre Hospitalier Universitaire de Lille LIRIC INSERM U1286, Université de Lille Lille France