title: [Diagnosis and treatment of masked perforated gastroduodenal ulcers].
mesh_terms: D004381:Duodenal Ulcer / Q000175:diagnosis*; D006801:Humans; D010439:Peptic Ulcer Perforation / Q000175:diagnosis*; D013276:Stomach Ulcer / Q000175:diagnosis*
vernacular_title: Diagnostika i lechenie prikrytykh perforativnykh gastroduodenal'nykh iazv.