[Ulcers in childhood].
D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D004381:Duodenal Ulcer / Q000453:epidemiology; D006801:Humans; D007223:Infant; D010437:Peptic Ulcer / Q000453:epidemiology*; D010438:Peptic Ulcer Hemorrhage / Q000453:epidemiology; D010439:Peptic Ulcer Perforation / Q000453:epidemiology
Ulcus hos barn.