Eleni Efraimidou1, Anthia Gatopoulou2, Charilaos Stamos3, Nikolaos Lirantzopoulos1 and George Kouklakis2
1
1st Surgical Department, Democritus University of Thrace, Alexandroupolis, Greece
2
Endoscopy Unit, Democritus University of Thrace, Alexandroupolis, Greece
3
Department of pathology, Democritus University of Thrace, Alexandroupolis, Greece