1 Developmental Biology and Cancer, UCL Great Ormond Street Institute of Child Health, London, UK. s.ghorashian@ucl.ac.uk.
2 Service d'hématologie clinique et de thérapie cellulaire, Hôpital Saint Antoine, APHP, Sorbonne Université, INSERM UMRs 938, Paris, France.
3 Department of Hematology, Ankara University Faculty of Medicine, Ankara, Turkey.
4 EBMT Statistical Unit, Leiden, The Netherlands.
5 EBMT Leiden Study Unit, Leiden, The Netherlands.
6 Hospital Clinic Barcelona, Barcelona, Spain.
7 Department of Hematology, Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
8 Hospital de la Princesa, Madrid, Spain.
9 Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden.
10 Ospedale San Raffaele s.r.l., Haematology and BMT, Milan, Italy.
11 Institut Paoli-Calmettes, Centre de Lutte Contre le Cancer; Centre d'Investigations Cliniques en Biothérapie, Université d'Aix-Marseille, Inserm CBT 1409, Marseille, France.