1. Division of Hematology and Clinical Immunology and Bone Marrow Transplant Program, Department of Medicine and
2. Division of Microbiology, Department of Experimental Medicine, University of Perugia, Perugia, Italy;
3. Blood Bank, Ospedale Santa Maria della Misericordia, Perugia, Italy;
4. Immunotherapy Laboratory, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland; and
5. Division of Hematology and Bone Marrow Transplant Unit, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy