title: Experience with intravenous demerol with lorfan for analgesia and anesthesia in obstetrics.
mesh_terms: D000698:Analgesia; D000758:Anesthesia; D000773:Anesthesia, Obstetrical; D000776:Anesthesiology; D007977:Levallorphan; D008614:Meperidine / Q000628:therapy*; D009020:Morphine / Q000037:antagonists & inhibitors*; D009774:Obstetrics; D059408:Pain Management
chemical_list: D007977:Levallorphan; D009020:Morphine; D008614:Meperidine
keywords: ANESTHESIA, OBSTETRICAL; MEPERIDINE/therapy; MORPHINE/antagonists