International Journal of Obstetric Anesthesia
International Journal of Obstetric Anesthesia > 2009 > 18 > 1 > 67-72
International Journal of Obstetric Anesthesia > 2009 > 18 > 2 > 142-149
International Journal of Obstetric Anesthesia > 2009 > 18 > 4 > 335-341