1. Tel Aviv Medical Center and Sackler Faculty of Medicine Tel Aviv Israel
2. Department of HematologyJagiellonian University Medical College Cracow Poland
3. Department of Hematology and Stem Cell TransplantationSouth‐Pest Central Hospital, Natl. Inst. Hematol. Infectol Budapest Hungary
4. Service d'Hématologie et thérapie cellulaireHôpital Saint Antoine Paris France
5. Service d'HématologieHôpital Pitié Salpêtrière Paris France
6. Weill Cornell Medical College New York New York
7. Le Scotte Hospital Siena Italy
8. Department of Haematology and Bone Marrow TransplantationSilesian Medical University Katowice Poland
9. Department of Hematology, Oncology and Internal DiseasesWarsaw Medical University Warsaw Poland
10. Department of Hematology, Blood Neoplasms and Bone Marrow TransplantationWroclaw Medical University Poland
11. Department of Haematology and Bone Marrow TransplantationMedical University of Lublin Lublin Poland
12. Department of HaematologyPomeranian Medical University Szczecin Poland
13. 4th Department of Medicine – HaematologyCharles University Hospital Hradec Kralove Hradec Kralove Czech Republic
14. Division of HematologyClinical Hospital Merkur Zagreb Croatia
15. Asistencial de Avila Hospital Ávila Spain
16. Hematology Unit, Department of Onco‐HematologyAzienda Ospendaliera of Cosenza Cosenza Italy
17. Dana‐Farber Cancer InstituteHarvard Medical School Boston Massachusetts