1. Pediatric Surgery Unit, University Hospital of Health and Science, Regina Margherita Children’s Hospital, Turin, Italy
2. Division of Pediatric General, Thoracic, Neonatal & Minimally Invasive Surgery, Regina Margherita Children’s Hospital, Turin, Italy
3. Post-graduate School of Pediatrics, Regina Margherita Children’s Hospital, University of Turin, Turin, Italy
4. Bambino Gesù Children’s Hospital, Rome, Italy
5. Pediatric Radiology Unit, Great Ormond Street Hospital, London, UK