1. Marien Hospital Düsseldorf Düsseldorf Germany
2. King's College Hospital London UK
3. Tel Aviv Sourasky Medical Center Tel Aviv Israel
4. Hospital Universitario y Politécnico La Fe Valencia Spain
5. Medical Clinic and Polyclinic I University Hospital Technical University Dresden Dresden Germany
6. Radboud University Medical Centre Nijmegen The Netherlands
7. AZ St‐Jan Brugge AV Brugge Belgium
8. Centre Hospitalier Universitaire Purpan Pavillion de Médecines Toulouse France
9. Erasmus Medical Center Rotterdam The Netherlands
10. Hospital Universitario de Salamanca Salamanca Spain
11. CHU Brabois University Center of Medicine Vandoeuvre France
12. Skåne University Hospital Lund Sweden
13. University of Freiburg Medical Center Freiburg Germany
14. Centre Hospitalier Régional Universitaire Claude Huriez Service des Maladies du Sang Lille France
15. Hannover Medical School Hannover Germany
16. St James's Institute of Oncology Leeds UK
17. Institute of Cell and Molecular Pathology Hannover Medical School Hannover Germany
18. Celgene Corporation Summit NJ USA
19. Karolinska University Hospital Stockholm Sweden
20. Service d'Hématologie Séniors Hôpital St Louis Université Paris 7 Paris France