1. Department of Translational Medicine and Surgery, School of Medicine, Catholic University, 00168 Rome, Italy
2. Digestive Surgery Unit, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Largo Agostino Gemelli 8, 00168 Rome, Italy
3. Center for Diagnosis and Treatment of Digestive Diseases, CEMAD, Fondazione Policlinico Universitario A. Gemelli, IRCCS, Largo Agostino Gemelli 8, 00168 Rome, Italy