1. Pediatric Oncology Unit, Department of Hematology and Pediatric Hematology-Oncology, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
2. Urology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
3. Clinical Epidemiology and Trials Organization Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
4. Department of Radiology and Radiotherapy, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
5. Pediatric Hematology and Oncology Unit, Ospedale dei Bambini G. di Cristina, Palermo, Italy
6. Pediatric Onco-Hematology, Stem Cell Transplantation and Cellular Therapy Division, Regina Margherita Children’s Hospital, Torino, Italy
7. Pediatric Unit, Ospedali Riuniti Bergamo, Bergamo, Italy
8. Pediatric Oncology, Pediatric Department, II University, Napoli, Italy
9. Pediatric Hematology and Oncology Unit “Lalla Seràgnoli,” Bologna University, Bologna, Italy
10. Department of Hematology and Oncology, Istituto G. Gaslini, Genova, Italy
11. Pediatric Hematology and Oncology, Catania University, Catania, Italy
12. Department of Predictive & Preventive Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
13. Department of Pathology and Laboratory Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy