[Long-term follow-up study of gastric and duodenal ulcers].
D000328:Adult; D000368:Aged; D004381:Duodenal Ulcer / Q000401:mortality*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D013276:Stomach Ulcer / Q000401:mortality*