Course of patients with perforated duodenal ulcers.
D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer; D005260:Female; D005500:Follow-Up Studies; D005743:Gastrectomy; D005763:Gastroenterostomy; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation