1. Hematology and Bone Marrow Transplantation Unit; San Raffaele Scientific Institute; Milan Italy
2. Université Pierre and Marie Curie; Paris France
3. Uniteé de Recherche Mixte en Santeé (UMR_S) 938, INSERM; Paris France
4. Service d'Hématologie Clinique et Thérapie Cellulaire; Hôpital Saint-Antoine, AP-HP; Paris France
5. Stem Cell Transplantation Unit; Hospital St Louis, APHP; Paris France
6. Erasmus MC-Daniel den Hoed Cancer Centre; Rotterdam The Netherlands
7. Hematology Department; Hospital Clínic, IDIBAPS; Barcelona Spain
8. Department of Hematology/Oncology and Stem Cell Transplantation; Bambino Gesù Children's Hospital, IRCCS; Rome Italy
9. Stem Cell Transplantation Unit, Comprehensive Cancer Center; Helsinki University Hospital; Helsinki Finland
10. Service des Maladies du Sang; Hopital Claude Huriez, CHRU Lille; Lille France
11. Queen Elizabeth Hospital, Birmingham, and University of Birmingham; Birmingham United Kingdom
12. Hematology, University Hospital of Basel; Basel Switzerland
13. Programme de Transplantation and Thérapie Cellulaire, Centre de Recherche en Cancérologie de Marseille; Institut Paoli Calmettes; Marseille France
14. Department of Medicine; Oslo University Hospital; Oslo Norway
15. Clinica di Ematologia; Università Politecnica delle Marche; Ancona Italy
16. Département d'Hématologie Clinique; CHU Lapeyronie; Montpellier France
17. Hematology Division; Chaim Sheba Medical Center; Tel Hashomer Israel