title: Failure of cimetidine prophylaxis in the critically ill patient: two fatal cases of duodenal perforation.
mesh_terms: D000328:Adult; D002927:Cimetidine / Q000627:therapeutic use*; D004381:Duodenal Ulcer / Q000150:complications / Q000517:prevention & control*; D005260:Female; D006146:Guanidines / Q000627:therapeutic use*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000209:etiology*
chemical_list: D006146:Guanidines; D002927:Cimetidine