1. Department of Haematology, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
2. Haematology Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, Milan, Italy
3. Department of Oncology and Haemato-oncology, University of Milan, Italy
4. Hematology and Bone Marrow Transplant Unit, ASST Papa Giovanni XXIII, Bergamo, Italy
5. Department of Hematology, San Gerardo Hospital, Monza, Italy
6. Haematology, ASL Biella, Italy
7. Haematology, ASST Cremona, Italy