SURGERY OF PEPTIC ULCER.
D004381:Duodenal Ulcer; D006801:Humans; D010437:Peptic Ulcer; D010439:Peptic Ulcer Perforation; D011708:Pylorus; D013276:Stomach Ulcer; D014628:Vagotomy
DUODENAL ULCER; PEPTIC ULCER PERFORATION; PYLORUS; STOMACH ULCER; VAGOTOMY