title: [Duodenofibroscopy in the study of duodenal ulcer].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001706:Biopsy; D004381:Duodenal Ulcer / Q000175:diagnosis* / Q000473:pathology; D004386:Duodenum; D004724:Endoscopy / Q000379:methods; D005260:Female; D005336:Fiber Optic Technology; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology; D008297:Male; D008875:Middle Aged
vernacular_title: Duodenofibroskopiia v izuchenii iazvy dvenadtsatiperstnoĭ kishki