[Gastric and duodenal ulcer in infancy and childhood (author's transl)].
D002648:Child; D002675:Child, Preschool; D004381:Duodenal Ulcer / Q000000981:diagnostic imaging / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007223:Infant; D007564:Japan; D008297:Male; D011859:Radiography; D012737:Sex Factors; D013276:Stomach Ulcer / Q000000981:diagnostic imaging / Q000453:epidemiology*