1. Department of Surgery Oncology and Gastroenterology, University of Padova, Padova, Italy
2. Clinica Chirurgica I, Azienda Ospedaliera Padova, Padova, Italy
3. Sarcoma Service, Department of Surgery, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
4. Pediatric Surgery, Department of Women's and Children's Health, University of Padua, Padua, Italy
5. Department of Pediatric Hematology/Oncology, Dana-Farber/Boston Children's Cancer and Blood Disorders Center and Harvard Medical School, Boston, MA, USA
6. Surgical Oncology Unit, Istituto Oncologico Veneto (IOV-IRCCS), Padova, Italy