Maternal mortality and anaesthesia.
D000768:Anesthesia, General / Q000401:mortality; D000773:Anesthesia, Obstetrical / Q000379:methods / Q000401:mortality*; D002585:Cesarean Section / Q000401:mortality; D004739:England; D005260:Female; D006801:Humans; D008428:Maternal Mortality; D011247:Pregnancy; D012606:Scotland; D014852:Wales