Gastric ulcer in the teen-ager.
D000293:Adolescent; D002648:Child; D004032:Diet; D004381:Duodenal Ulcer / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008297:Male; D011708:Pylorus; D011859:Radiography; D013276:Stomach Ulcer / Q000000981:diagnostic imaging; D013315:Stress, Psychological