title: Absence of seasonal fluctuations in peptic ulcer activity.
authors.forename: E
authors.initials: E
authors.lastname: Ozyilkan
authors.forename: T
authors.initials: T
authors.lastname: Köseoğlu
authors.forename: H
authors.initials: H
authors.lastname: Telatar
mesh_terms: D006801:Humans; D010437:Peptic Ulcer / Q000453:epidemiology*; D012621:Seasons; D014421:Turkey / Q000453:epidemiology