title: Symptomatic peptic ulcer (PU): is there any seasonal variation? An endoscopic retrospective study.
authors.affiliation: Department of Pathologic Physiology, University of Athens, Medical School, Laikon General Hospital, Greece.
authors.forename: A
authors.initials: A
authors.lastname: Archimandritis
authors.forename: M
authors.initials: M
authors.lastname: Tjivras
authors.forename: M
authors.initials: M
authors.lastname: Tsirantonaki
authors.forename: D
authors.initials: D
authors.lastname: Kalogeras
authors.forename: A
authors.initials: A
authors.lastname: Fertakis
mesh_terms: D005260:Female; D006115:Greece / Q000453:epidemiology; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000453:epidemiology*; D012189:Retrospective Studies; D012621:Seasons