title: [Ranitidine, cimetidine and placebo in the short and longer term treatment of duodenal ulcer].
mesh_terms: D000293:Adolescent; D000328:Adult; D002927:Cimetidine / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004381:Duodenal Ulcer / Q000188:drug therapy*; D004384:Duodenoscopy; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos / Q000627:therapeutic use; D011899:Ranitidine / Q000627:therapeutic use*; D012008:Recurrence
chemical_list: D010919:Placebos; D002927:Cimetidine; D011899:Ranitidine
vernacular_title: Ranitidina, cimetidina y placebo en el tratamiento a corto y mediano plazo de la úlcera duodenal.