1. Department for the Treatment and Study of Abdominal Diseases and Abdominal Transplantation, and 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) Italy, Palermo, Italy.
2. Rehabilitation Service, 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) Italy, Palermo, Italy.
3. Department of Surgery and Surgical and Medical Specialties, University of Catania, Catania, Italy.