title: Intrathecal morphine combined with hyperbaric tetracaine.
mesh_terms: D000328:Adult; D000368:Aged; D000775:Anesthesia, Spinal; D005260:Female; D006801:Humans; D007044:Hysterectomy; D008875:Middle Aged; D009020:Morphine; D010149:Postoperative Pain / Q000517:prevention & control; D013748:Tetracaine
chemical_list: D013748:Tetracaine; D009020:Morphine