[1] Univ Catania, Azienda Policlin OVE, Div Hematol, Catania, Italy
[2] Univ Catania, BIOMETEC, Dipartimento Sci Biomed & Biotecnol, Catania, Italy
[3] GIMEMA, Italian Multiple Myeloma Network, Rome, Italy
[4] Univ Catania, CHIRMED, Dipartimento Chirurg Gen & Specialita Medicochiru, Catania, Italy
[5] Univ Catania, Dept Hematol, Catania, Italy