1. Department of Woman and Child Health, Laboratory of Hematology-Oncology, University of Padova, Padova, Italy
2. Department of Pediatrics, “Lalla Seràgnoli,” Hematology-Oncology Unit, University of Bologna, Bologna, Italy
3. Ospedale Santobono-Pausillipon, Napoli, Italy
4. Oncoematologia Pediatrica, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
5. Department of Pediatric Hematology-Oncology, IRCCS Ospedale Bambino Gesù, Rome, Italy