1. University Hospital of Bern Bern Switzerland
2. King's Denmark Hill Campus London UK
3. University Hospital of Basel Basel Switzerland
4. University Medical Centre Nantes France
5. Catalan Institute of Oncology Hospital Germans Trias i Pujol, Jose Carreras Research Institute Badalona Spain
6. Hopital St. Louis Paris France
7. EBMT Data Office Leiden the Netherlands
8. Centro Interdipartimentale di Biostatistica e Bioinformatica Università Tor Vergata Rome Italy
9. Imperial College London UK
10. A.O.U. Citta della Salute e della Scienza Torino Italy
11. Hôpital Henri Mondor Creteil France
12. Ospedale Infantile Regina Margherita Torino Italy
13. St. George's Hospital London UK
14. University Medical Centre Maastricht the Netherlands
15. Charité ‐ Campus Virchow Klinikum Berlin Germany
16. Leeds Teaching Hospitals Leeds UK
17. University of Napoli Napoli Italy
18. University of Heidelberg Heidelberg Germany
19. G. Gaslini Children's Hospital Genova Italy