1. Surgery of the Alimentary Tract, Department of Medical and Surgical Sciences, Sant’Orsola - Malpighi Hospital, Alma Mater Studiorum University of Bologna, Bologna, Italy
2. Intestinal Chronic Bowel Disease Unit, Department of Medical and Surgical Sciences, Sant’Orsola - Malpighi Hospital, Alma Mater Studiorum University of Bologna, Bologna, Italy