title: Failure of H2 blocker therapy in a case of hemorrhage from a Meckel's diverticulum.
mesh_terms: D000328:Adult; D002927:Cimetidine / Q000627:therapeutic use*; D006471:Gastrointestinal Hemorrhage / Q000188:drug therapy* / Q000209:etiology; D006801:Humans; D008297:Male; D008467:Meckel Diverticulum / Q000150:complications / Q000188:drug therapy*; D011899:Ranitidine / Q000627:therapeutic use*
chemical_list: D002927:Cimetidine; D011899:Ranitidine