title: [Clinical and etiopathogenetic aspects of peptic ulcer in children].
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000175:diagnosis* / Q000453:epidemiology / Q000209:etiology; D012737:Sex Factors
vernacular_title: Niektóre aspekty kliniczne i etiopatogenetyczne choroby wrzodowej u dzieci