title: Long-term treatment with cimetidine in duodenal ulceration.
mesh_terms: D002986:Clinical Trials as Topic; D004381:Duodenal Ulcer / Q000188:drug therapy* / Q000534:rehabilitation; D006635:Histamine H2 Antagonists / Q000008:administration & dosage* / Q000627:therapeutic use; D006801:Humans; D010919:Placebos
chemical_list: D006635:Histamine H2 Antagonists; D010919:Placebos