Perforated duodenal ulcer.
D000038:Abscess / Q000209:etiology; D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000401:mortality / Q000601:surgery*; D005260:Female; D006801:Humans; D007239:Infections / Q000209:etiology; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000401:mortality / Q000601:surgery*; D011015:Pneumonia, Aspiration / Q000401:mortality; D011183:Postoperative Complications; D011708:Pylorus / Q000601:surgery; D012008:Recurrence; D012189:Retrospective Studies; D013997:Time Factors; D014628:Vagotomy