title: Cimetidine and duodenal ulcer.
mesh_terms: D000328:Adult; D000368:Aged; D002927:Cimetidine / Q000009:adverse effects*; D004381:Duodenal Ulcer / Q000188:drug therapy*; D006146:Guanidines / Q000009:adverse effects*; D006801:Humans; D008297:Male; D010439:Peptic Ulcer Perforation / Q000139:chemically induced*
chemical_list: D006146:Guanidines; D002927:Cimetidine