RELATIONSHIP BETWEEN PRE-OPERATIVE BLEEDING AND PERFORATION AND BLEEDING AFTER OPERATIONS FOR DUODENAL ULCER.
D004381:Duodenal Ulcer; D005743:Gastrectomy; D005763:Gastroenterostomy; D006801:Humans; D010438:Peptic Ulcer Hemorrhage; D010439:Peptic Ulcer Perforation; D011183:Postoperative Complications; D013223:Statistics as Topic; D014628:Vagotomy
DUODENAL ULCER; GASTRECTOMY; GASTROENTEROSTOMY; PEPTIC ULCER HEMORRHAGE; PEPTIC ULCER PERFORATION; POSTOPERATIVE COMPLICATIONS; STATISTICS; VAGOTOMY