title: [The use of fibrogastroduodenoscopy in the diagnosis of perforated stomach and duodenal ulcer].
mesh_terms: D000293:Adolescent; D000328:Adult; D004381:Duodenal Ulcer / Q000150:complications*; D004384:Duodenoscopy; D005336:Fiber Optic Technology; D005773:Gastroscopy; D006801:Humans; D010439:Peptic Ulcer Perforation / Q000175:diagnosis*; D013276:Stomach Ulcer / Q000150:complications*
vernacular_title: Ispol'zovanie fibrogastroduodenoskopii v diagnostike perforativnykh iazv zheludka i dvenadtsatiperstnoĭ kishki.