title: [Errors in the diagnosis of perforating gastroduodenal ulcers in the prehospital stage].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003951:Diagnostic Errors; D004381:Duodenal Ulcer / Q000150:complications*; D005260:Female; D006760:Hospitalization; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000175:diagnosis* / Q000209:etiology; D013276:Stomach Ulcer / Q000150:complications*
vernacular_title: Oshibki v diagnostike probodnykh gastroduodenal'nykh iazv na dogospital'nom étape.