1. Pediatric Oncology Unit, Medical Oncology Department Fondazione IRCCS Istituto Nazionale dei Tumori Milan Italy
2. SIREDO Oncology Center Care (Innovation and Research for Children, Adolescents and Young Adults with Cancer) Institut Curie PSL University Paris France
3. Solid Tumors Department Princess Máxima Center for Pediatric Oncology Utrecht the Netherlands
4. Division Imaging & Cancer, Pediatric Oncology Department University Medical Center Utrecht Utrecht the Netherlands
5. Hematology Oncology Division, Department of Women's and Children's Health University of Padua Padua Italy
6. Department of Women's and Children's Health University of Padua Padua Italy
7. Pathology Department Ospedale Pediatrico Bambino Gesù IRCCS Roma Italy
8. Hematology/Oncology, Department of Oncohematology, Hematopoietic Transplantation, and Cell Therapy Ospedale Pediatrico Bambino Gesù IRCCS Roma Italy
9. Medical Oncology Department Institut Curie Paris France
10. Department of Pediatric Hematology and Oncology‐IHOPe Léon Bérard Center Lyon France
11. Department of Research Tumor Genomics Unit Fondazione IRCCS Istituto Nazionale dei Tumori Milan Italy
12. Pediatric Radiotherapy Unit, Radiotherapy Department Fondazione IRCCS Istituto Nazionale Tumori Milan Italy
13. Department of Experimental Oncology Molecular Pharmacology Unit Fondazione IRCCS Istituto Nazionale dei Tumori Milan Italy
14. Department of Surgery Sarcoma Service Fondazione IRCCS Istituto Nazionale dei Tumori Milan Italy