title: Epidural morphine.
mesh_terms: D000698:Analgesia / Q000379:methods*; D006801:Humans; D007278:Injections, Spinal; D008614:Meperidine / Q000008:administration & dosage; D009020:Morphine / Q000008:administration & dosage*
chemical_list: D009020:Morphine; D008614:Meperidine