1. Beinart J 1990 Obstetric analgesia and the control of childbirth. In Garcia J, Kilpatrick R, Richards M (eds) The politics of maternity care. Clarendon, Oxford, Ch 6
2. Benhamou D, Hamza J, Ducot B 1995 Post-partum headache after epidural analgesia without dural puncture. International Journal of Obstetric Anaesthesia 4: 44–7
3. Bush D 1995 A comparison of informed consent for obstetric anaesthesia in the USA and UK. International Journal of Obstetric Anaesthesia 4: 1–6
4. Dickersin K 1989 Pharmacological control of pain during labour. In Chalmers I Enkin M, Keirse MJNC (eds) Effective care in pregnancy and childbirth. Oxford University Press, Oxford, Ch 57
5. Fernando R 1995 Mobile epidurals for labour analgesia. Maternal and Child Health 20 (11): 353–8