title: [Perforated gastric and duodenal ulcer in the Rzeszów Province in the years 1958-1967].
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D010439:Peptic Ulcer Perforation / Q000453:epidemiology*; D011044:Poland; D012424:Rural Population; D012621:Seasons; D014505:Urban Population
vernacular_title: Przedziurawiony wrzód zoładka i dwunastnicy w województwie rzeszowskim w latach 1958-1967