1. Department of Anatomic Pathology; Azienda Ospedaliero-Universitaria Policlinico di Modena; Modena Italy
2. Department of Hematology; University Hospital Policlinico of Modena; Modena Italy
3. Pathology Unit; Arcispedale S. Maria Nuova-I.R.C.C.S.; Reggio Emilia Italy