title: [Comparative study of ranitidine in a single daily dose and in 2 doses in the short-term treatment of duodenal ulcers].
mesh_terms: D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D004334:Drug Administration Schedule; D004381:Duodenal Ulcer / Q000188:drug therapy*; D005260:Female; D005744:Gastric Acid / Q000378:metabolism; D006801:Humans; D008297:Male; D011446:Prospective Studies; D011897:Random Allocation; D011899:Ranitidine / Q000008:administration & dosage* / Q000627:therapeutic use
chemical_list: D011899:Ranitidine
vernacular_title: Estudio comparativo de ranitidina en dosis diaria única y en dos dosis en el tratamiento a corto plazo de la úlcera duodenal.