1. Hematology/Oncology DepartmentOspedale Pediatrico Bambino Gesù, IRCCS Roma Italy
2. Pediatric Hematology/Oncology UnitA.R.N.A.S. Civico Di Cristina e Benfratelli Palermo Italy
3. Surgery DepartmentOspedale Pediatrico Bambino Gesù, IRCCS Roma Italy
4. Pathology UnitOspedale Pediatrico Bambino Gesù, IRCCS Roma Italy
5. Oncology UnitIRCCS Istituto G. Gaslini Genova Italy
6. Pediatric Oncology, Women's and Children's Health DepartmentUniversity of Padua Padua Italy
7. Pediatric Oncology UnitFondazione IRCCS Istituto Nazionale dei Tumori di Milano Milano Italy
8. Pediatric Surgery, Women's and Children's Health DepartmentUniversity of Padua Padua Italy
9. Pediatric Surgery DepartmentUniversity of Palermo Palermo Italy