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The results of surgical treatment for duodenal ulcer were compared in two groups of patients-51 who had undergone selective vagotomy without drainage and 17 who had had selective vagotomy and pyloroplasty. It is suggested that in the absence of organic pyloric or duodenal stenosis the former method seems both preferable and desirable, since postoperativley dumping does not occur and there is a steady improvement in gastric emptying.