1. SC of Haematology AO SS Antonio e Biagio e Cesare Arrigo Alessandria Italy
2. Department of Clinical and Experimental Medicine Section of Hematology, University of Pisa Pisa Italy
3. Department of Life Sciences Sant'Anna School of Advanced Studies, Piazza Martiri della Libertà 33 Pisa Italy
4. Department of Clinical and Experimental Medicine, Second Section of Pathology University of Pisa Pisa Italy