title: Grand rounds from the University of Southern California. A complicated case of peptic ulcer.
mesh_terms: D004381:Duodenal Ulcer / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000601:surgery*; D011183:Postoperative Complications; D012008:Recurrence