title: [Drug prevention in duodenal ulcer. A placebo-controlled trial with ranitidine].
mesh_terms: D002986:Clinical Trials as Topic; D004381:Duodenal Ulcer / Q000517:prevention & control*; D005500:Follow-Up Studies; D006801:Humans; D011897:Random Allocation; D011899:Ranitidine / Q000627:therapeutic use*
chemical_list: D011899:Ranitidine
vernacular_title: Medikamentell profylakse ved ulcus duodeni. Et placebo-kontrollert forsøk med ranitidin.