title: Epidural morphine for postoperative analgesia.
mesh_terms: D000698:Analgesia; D000767:Anesthesia, Epidural; D002045:Bupivacaine; D002585:Cesarean Section; D005260:Female; D006801:Humans; D009020:Morphine / Q000008:administration & dosage*; D011182:Postoperative Care; D011247:Pregnancy; D011343:Procaine / Q000031:analogs & derivatives; D012119:Respiration / Q000187:drug effects
chemical_list: D011343:Procaine; C004616:chloroprocaine; D009020:Morphine; D002045:Bupivacaine