1. Pediatric Oncology Hematology “Lalla Seragnoli”, Policlinico S.Orsola-Malpighi, Bologna, Italy;
2. Pediatric Onco-Hematology Unit, Azienda Ospedaliero-Universitaria Sant’Anna di Ferrara, Ferrara, Italy;
3. Clinic of Pediatric Hemato-Oncology, Department of Women’s and Children’s Health, University of Padova, Padova, Italy;
4. Division of Pediatric Onco-Hematology, Regina Margherita Children’s Hospital, Torino, Italy;
5. Oncology Unit, Istituto G.Gaslini, Genova, Italy;
6. Pediatric Haematology/Oncology, Fondazione IRCCS Policlinico “San Matteo”, Pavia, Italy;
7. Pediatric Oncology Service, Pediatric Department, Second University of Naples, Napoli, Italy;
8. Clinica Pediatrica, Università di Milano-Bicocca, Azienda Ospedaliera San Gerardo, Monza, Italy;
9. Division of Pediatric Hematology Oncology, Department of Pediatrics, Bari, Italy;
10. Department of Pediatric Hematology Oncology, Azienda Ospedaliero Universitaria A. Meyer Children Hospital, Firenze, Italy;
11. Pediatric Hematology-Oncology, Azienda Ospedaliera Universitaria Integrata di Verona, Verona, Italy;
12. Pediatric Hematology-Oncology, - Azienda Ospedaliera Universitaria Policlinico Vittorio Emanuele, Catania, Italy;
13. Department of Oncology, Pediatric Hematology and Oncology Unit, A.R.N.A.S. Ospedali Civico Di Cristina e Benfratelli, Palermo, Italy;
14. Unit of Pediatrics, Casa Sollievo della Sofferenza, San Giovanni Rotondo, Foggia, Italy;
15. Dipartimento di Oncoematologia Pediatrica, Ospedale Bambino Gesù, IRCCS Roma, Rome, Italy;
16. Chair of Pathology and Unit of Haematopathology, Department of Haematology and Oncological Sciences “L. and A. Seràgnoli”, Bologna University, Bologna, Italy;
17. Radiation therapy Department, IOV-IRCCS, Padova, Italy;
18. S.S. Radioterapia Pediatrica e Area Giovani, IRCCS, Centro di Riferimento Oncologico Aviano, Pordenone, Italy;
19. Department of Pediatrics, Pediatric Oncology Unit, “Infermi” Hospital, Rimini, Italy