1. Department of Hematology, San Carlo Hospital, Potenza;
2. Pediatric Hematology/Oncology, Fondazione Instituto Di Ricerca e Cura a Caratiere Scientifica, Policlinico San Matteo, University of Pavia, Pavia;
3. Unit of Bone Marrow Transplantation, Ospedale Regionale per le Microcitemie, Cagliari;
4. Department of Hematology, St Bortolo Hospital, Vicenza;
5. Department of Hematology, Università Politecnica delle Marche, Ancona;
6. Department of Hematology, Santa Croce e Carle Hospital, Cuneo;
7. Department of Pediatric Hematology, San Gerardo Hospital, Monza;
8. Department of Internal Medicine, Università Politecnica delle Marche, Ancona; and
9. Hematology Unit and Stem Cell Transplant Unit San Martino Hospital, Genova, Italy