Levallorphan in obstetrics.
D000698:Analgesia; D000758:Anesthesia; D000760:Anesthesia and Analgesia; D005260:Female; D006801:Humans; D007231:Infant, Newborn / Q000502:physiology; D007743:Labor, Obstetric; D007977:Levallorphan; D009022:Morphine Derivatives; D009774:Obstetrics; D059408:Pain Management; D011247:Pregnancy
D009022:Morphine Derivatives; D007977:Levallorphan
INFANT, NEWBORN/physiology; LABOR/anesthesia and analgesia; MORPHINE/related compounds