[4 operative cases of postoperative peptic ulcer of the jejunum at the anastomotic site and review of literature].
D000328:Adult; D000368:Aged; D006801:Humans; D007583:Jejunum; D008297:Male; D008875:Middle Aged; D010437:Peptic Ulcer / Q000209:etiology* / Q000601:surgery; D011183:Postoperative Complications; D013270:Stomach / Q000601:surgery