Acute postoperative peptic ulceration.
D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000401:mortality / Q000628:therapy; D011183:Postoperative Complications; D012737:Sex Factors