title: Epidural morphine, hypertension, and aortic surgery.
mesh_terms: D015360:Analgesia, Epidural; D001012:Aorta, Abdominal / Q000601:surgery*; D005069:Evaluation Studies as Topic; D006801:Humans; D006973:Hypertension / Q000097:blood / Q000517:prevention & control*; D009020:Morphine / Q000008:administration & dosage* / Q000627:therapeutic use; D009638:Norepinephrine / Q000097:blood; D011183:Postoperative Complications / Q000097:blood / Q000517:prevention & control*; D012720:Severity of Illness Index
chemical_list: D009020:Morphine; D009638:Norepinephrine