title: Failure of cimetidine in treating giant duodenal ulcer.
mesh_terms: D000208:Acute Disease; D000368:Aged; D002927:Cimetidine / Q000627:therapeutic use*; D004381:Duodenal Ulcer / Q000188:drug therapy*; D006146:Guanidines / Q000627:therapeutic use*; D006801:Humans; D008297:Male
chemical_list: D006146:Guanidines; D002927:Cimetidine