title: Acid secretion in patients with a perforated duodenal ulcer.
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D004381:Duodenal Ulcer / Q000378:metabolism; D004415:Dyspepsia; D005260:Female; D005500:Follow-Up Studies; D005750:Gastric Juice / Q000378:metabolism*; D006632:Histamine; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000175:diagnosis / Q000601:surgery*; D011379:Prognosis; D013268:Stimulation, Chemical
chemical_list: D006632:Histamine