[Epidemiology of gastric and duodenal ulcer].
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000453:epidemiology*
Epidemiología de la ulcera gástrica y duodenal.