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2. Enprostil (E) versus ranitidine (R) in duodenal ulcer (DU);Bardhan;Gut,1985
3. Trimoprostil vs cimetidine in duodenal ulcer;Bardhan;Gut,1984
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5. Misoprostol, a synthetic PGE1 analog, in the treatment of duodenal ulcers: a multicenter double-blind study;Brand;Digestive Diseases and Sciences,1985