1. Pediatric Gastroenterology Unit Santobono‐Pausilipon Children’s Hospital Naples Italy
2. Department of Translational Medical Science (Section of Pediatrics) University "Federico II" Naples Italy
3. Pediatric Surgery Unit Santobono‐Pausilipon Children's Hospital Naples Italy
4. Emergency Pediatric Department Santobono‐Pausilipon Children's Hospital Naples Italy
5. Pediatric Gastroenterology and Endoscopic Unit "Santo Spirito" Hospital Pescara Italy
6. Department of Emergency Radiology Santobono‐Pausilipon Children's Hospital Naples Italy
7. Department of Public Health University of Naples Federico II Naples Italy
8. NESMOS Department Chair of Pediatrics Faculty of Medicine and Psychology Sapienza University of Rome Sant'Andrea University Hospital Rome Italy