1 Stergios Vradelis, PhD, MD, is Assistant Professor of Gastroenterology, Faculty of Medicine, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece. Michael Doulberis, MD, is SHO in Gastroenterology, Endoscopy Unit, Faculty of Medicine, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece. Erminia Dellaporta, MD, is Gastroenterologist, Endoscopy Unit, Faculty of Medicine, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece. Asimenia Babali, PhD, MD, is SHO in Gastroenterology, Endoscopy Unit, Faculty of Medicine, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece. Periklis Panagopoulos, PhD, MD, is Assistant Professor of Pathology, Faculty of Medicine, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece. Eleni Efraimidou, PhD, MD, is Assistant Professor of Surgery, Faculty of Medicine, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece. Georgios Kouklakis, PhD, MD, is Professor of Gastroenterology, Faculty of Medicine, Democritus University of Thrace, University Hospital of Alexandroupolis, Alexandroupolis, Greece.