Postoperative sepsis after colorectal surgery: a prospective single-center observational study and review of the literature - Francesk Mulita; Elias Liolis; Karolina Akinosoglou; Levan Tchabashvili; Ioannis Maroulis; Charalampos Kaplanis; Michail Vailas; George Panos (Gastroenterology Review)