1. Regional versus general anaesthesia for caesarean section;Afolabi;Cochrane Database Syst Rev,2006
2. Practice guidelines for obstetric anesthesia: an updated report by the American Society of Anesthesiologists Task Force on Obstetric Anesthesia;American Society of Anesthesiologists Task Force on Obstetric Anesthesia;Anesthesiology,2007
3. Epidural versus non-epidural or no analgesia in labour;Anim-Somuah;Cochrane Database Syst Rev,2005
4. Obstetric anesthesia: principles and practice;Chestnut,2009
5. Regional anesthesia and analgesia for labor and delivery;Eltzschig;N Engl J Med,2003