title: Addition of low-dose ketamine to general anesthesia does not improve cardiovascular response during conventional abdominal surgery.
mesh_terms: D000005:Abdomen / Q000601:surgery*; D000768:Anesthesia, General; D001794:Blood Pressure; D004305:Dose-Response Relationship, Drug; D006339:Heart Rate; D006801:Humans; D007649:Ketamine / Q000008:administration & dosage*
chemical_list: D007649:Ketamine