1. Pediatric Oncology and Hematology Unit "Lalla Seràgnoli", IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna
2. Department of Hematology Oncology and Transfusion Medicine, IRCCS Pediatric Hospital "Bambino Gesù", Rome
3. Pediatric Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan
4. Pediatric Hematology, Oncology and Stem Cell Transplant Division, Padua University Hospital, Padua
5. Department of Pediatric and Hemato-Oncologic Sciences, IRCCS "Istituto Giannina Gaslini", Genoa
6. Paediatric Onco-Haematology Division, Regina Margherita Children's Hospital, City of Health and Science of Turin, Turin
7. Pediatric Hematology Unit, Department of Woman, Child and General and Specialized Surgery, Università degli Studi della Campania, Naples
8. Pediatrics, Fondazione IRCCS San Gerardo dei Tintori, Monza; School of Medicine and Surgery, University of Milano-Bicocca
9. Department of Pediatric Hematology Oncology, Meyer Children's Hospital IRCCS, Florence
10. Pediatric Hematology/Oncology, Fondazione IRCCS Policlinico S.Matteo, Pavia
11. Oncology and Hematology, University Hospital of Policlinic, Bari
12. Pediatric Hematology and Oncology Unit, Department of Clinical and Experimental Medicine, University of Catania, Catania
13. Department of Women, Children and General and Specialized Surgery "Luigi Vanvitelli" Università degli Studi della Campania, Naples
14. Pediatric Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna
15. Pediatric Oncology and Hematology Unit "Lalla Seràgnoli", IRCCS Azienda-Ospedaliero-Universitaria di Bologna, Bologna