1. Department of General Surgery, “A. Costa” Hospital—Alto Reno Terme, 40046 Bologna, Italy
2. Department of Surgical Sciences, La Sapienza University, 00185 Rome, Italy
3. Department of Pathological Anatomy, Maggiore “Carlo Alberto Pizzardi” Hospital, 40133 Bologna, Italy
4. Solid Tumor Molecular Pathology Laboratory, Department of Medical and Surgical Sciences (DIMEC), IRCCS Azienda Ospedaliero-Universitaria, 00144 Bologna, Italy
5. Department of Gastroenterology, Maggiore “Carlo Alberto Pizzardi” Hospital, 40133 Bologna, Italy