[1] AUSL Romagna, Morgagni Pierantoni Hosp, Gen & Oncol Surg Unit, Forli, Italy
[2] AUSL Romagna, Morgagni Pierantoni Hosp, Gastroenterol & Digest Endoscopy Unit, Forli, Italy
[3] Univ Bologna, Alma Mater Studiorum, Dept Med & Surg Sci, Bologna, Italy