title: [Complications of chronic gastric and duodenal ulcers in young patients].
mesh_terms: D000293:Adolescent; D002648:Child; D002908:Chronic Disease; D004381:Duodenal Ulcer / Q000150:complications*; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006801:Humans; D008297:Male; D010439:Peptic Ulcer Perforation / Q000209:etiology; D011707:Pyloric Stenosis / Q000209:etiology; D013276:Stomach Ulcer / Q000150:complications*
vernacular_title: Powikłania choroby wrzodowej zoładka i dwunastnicy u młodziezy.