1. Unit of Hematology; Azienda Ospedaliera Universitaria Senese; Italy
2. University of Siena; Siena Italy
3. Hematology Department; University of Florence; Florence Italy
4. Department of Human Pathology and Oncology; University of Siena; Siena Italy
5. Hematology Department, Azienda Ospedaliera Universitaria ‘Ospedali Riuniti’; Ancona Italy
6. Hematology Department, Ospedale S.Andrea; Roma Italy
7. Hematology Division; Azienda Universitaria Policlinico; Palermo Italy
8. Hematology Department; Ospedale S.Eugenio; Roma Italy
9. Pathology Department; Università Politecnica delle Marche; Ancona Italy
10. Pathology Unit, Department of Clinical and Molecular Medicine, Sant'Andrea Hospital; La Sapienza University; Rome Italy
11. Pathology Department; Ospedale S.Eugenio; Rome Italy
12. Pathology Department; University of Florence; Florence Italy