1. Department of Hematology, Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
2. National Blood Center, Istituto Superiore di Sanità, Rome, Italy
3. Kings County Hospital Center, Brooklyn, New York, USA
4. Department of Hematology/Oncology, Tisch Cancer Institute, Mount Sinai School of Medicine, New York, New York, USA