1. Center for Diagnosis and Treatment of Digestive Diseases, CEMAD, Gastroenterology Department, Fondazione Policlinico Universitario A. Gemelli, IRCCS, 00168 Rome, Italy
2. Department of Translational Medicine and Surgery, School of Medicine, Catholic University of the Sacred Heart of Rome, 00168 Rome, Italy
3. Section of Gastroenterology and Hepatology, Promise, Policlinico Universitario Paolo Giaccone, 90127 Palermo, Italy
4. IBD-Unit, Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy
5. Department of Emergency Anesthesiological and Reanimation Sciences, Fondazione Universitaria Policlinico Agostino Gemelli di Roma, Catholic University of the Sacred Heart of Rome, 00168 Rome, Italy