title: [Periodicity of acute hemorrhages and perforations in patients with peptic ulcer of the stomach and duodenum].
mesh_terms: D000208:Acute Disease; D004381:Duodenal Ulcer / Q000150:complications*; D005260:Female; D006801:Humans; D008297:Male; D010438:Peptic Ulcer Hemorrhage / Q000453:epidemiology*; D010439:Peptic Ulcer Perforation / Q000453:epidemiology*; D010507:Periodicity; D013276:Stomach Ulcer / Q000150:complications*
vernacular_title: Periodichnost' ostrykh krovotecheniĭ i perforatsiĭ u bol'nykh iazvennoĭ bolezn'iu zheludka i dvenadtsatiperstnoĭ kishki.