1. Department of Pediatrics, Surgery and Transplantation Pediatric Unit IRCCS‐ISMETT (Istituto di Ricovero e Cura a Carattere Scientifico – Istituto Mediterraneo per i Trapianti e Terapie ad alta specializzazione), UPMC (University of Pittsburgh Medical Center) Palermo Italy
2. Department for the Treatment and Study of Abdominal Diseases and Abdominal Transplantation IRCCS‐ISMETT (Istituto di Ricovero e Cura a Carattere Scientifico ‐ Istituto Mediterraneo per i Trapianti e Terapie ad alta specializzazione), UPMC (University of Pittsburgh Medical Center) Palermo Italy
3. Department of Surgery and Medical and Surgical Specialties University of Catania Catania Italy