Perforated duodenal ulcer: long-term follow-up.
D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000150:complications* / Q000401:mortality / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000401:mortality / Q000601:surgery / Q000628:therapy*; D011183:Postoperative Complications; D013997:Time Factors