1. Department of Experimental Medicine; Sapienza University; Rome Italy
2. Transfusion Medicine and Stem Cell Unit, San Camillo Forlanini Hospital; Rome Italy
3. Department of Clinical and Experimental Medicine; University of Florence; Florence Italy
4. Department Area of Hematology; Careggi Hospital; Florence Italy
5. Department of Internal Medicine; Marche University; Ancona Italy
6. Hematology Clinical Unit; Ancona Hospital; Ancona Italy