1. Comprehensive Cancer Centre; Division of Haematology, King's College; London
2. Hammersmith Hospital NHS Foundation Trust; London United Kingdom
3. Service d'Hématologie-Greffe; Hôpital Saint-Louis; Assistance Publique Hôpitaux de Paris; Paris France
4. EBMT Data Office; University Medical Centre; Leiden the Netherlands
5. Ospedale San Martino; Genova Italy
6. University of Freiburg; Freiburg Germany
7. Institute of Haematology and Blood Transfusion; Prague Czech Republic
8. University Hospital Uppsala; Uppsala Sweden
9. Haematology, Oncology& Transfusion Centre; Vilnius University Hospital Santaros Klinikos; Vilnius Lithuania
10. Department of Haematology and Oncology; University of Regensburg; Regensburg Germany
11. Stem Cell Transplant Unit; Turku University Hospital; Turku Finland
12. Department of Haematology; Radboud University Medical Centre; Nijmegen the Netherlands
13. Service d'hématologie clinique Adulte et pédiatrie; CHU ESTAING; Clermont France
14. Department of Haematology; University of Liege; Liege Belgium
15. A.O.U Citta della Salute e della Scienza di Torino; S.S.C.V.D Trapianto di Cellule Staminali; Torino Italy
16. Erasmus MC Cancer Institute; University Medical Centre; Rotterdam the Netherlands
17. Clinic for Cancer, Surgery and Transplantation; Oslo University Hospital; Rikshospitalet Norway
18. Department of Haematology; Karolinska University Hospital; Stockholm Sweden
19. Department of Haematology; Hopital d`Enfants; Nancy France
20. CHU de Lille; LIRIC; INSERM U995; Universite de Lille; Lille France
21. University Hospital Eppendorf; Hamburg Germany
22. Division of Haematology; Geneva University Hospitals; Geneva Switzerland