title: Clinical Challenges and Images in GI.
authors.affiliation: Second Propaedeutic Department of Surgery, Medical School, University of Athens, General Hospital Laiko, Athens, Greece.
authors.forename: Nikolaos P
authors.initials: NP
authors.lastname: Karidis
authors.forename: Leonidas
authors.initials: L
authors.lastname: Lekakos
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Mantas