[Chronic peptic ulcer in adolescents].
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002675:Child, Preschool; D002908:Chronic Disease; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010437:Peptic Ulcer / Q000601:surgery*; D010439:Peptic Ulcer Perforation / Q000601:surgery
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