1. Pediatric Oncology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
2. Pediatric Hematology-Oncology Division, Department of Pediatrics, University of Bari, Bari, Italy
3. Hematology/Oncology, Ospedale Pediatrico Bambino Gesù IRCCS, Roma, Italy
4. Department of Pediatric Hematology/Oncology, Giannina Gaslini Children’s Hospital, Genoa, Italy
5. Pediatric Hematology-Oncology Department, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy
6. Pediatric Hematology Oncology Division, University of Padua, Padua, Italy
7. Pediatric Hematology-Oncology Department, Fondazione MBBM, Ospedale San Gerardo, Monza, Italy
8. Pediatric Oncology-Hematology Unit, Santa Maria della Misericordia Hospital, Perugia, Italy
9. Hematology-Oncology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
10. Pediatric Onco-Hematology, Stem Cell Transplantation and Cellular Therapy Division, Regina Margherita Children's Hospital, Torino, Italy