1. Department of Oncology-Hematology, Hematology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy;
2. Department of Molecular Medicine, University of Pavia, Pavia, Italy;
3. Department of Oncology-Hematology, School of Hematology, University of Pavia, Hematology Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy