1. DHSS. Report on confidential enquiries into maternal deaths in the United Kingdom 1985–1987. London: HMSO, 1991. p. 17–27.
2. Maternal mortality in the Cape Province, 1990–1992;Theron;South Afr. Med. J.,1996
3. Redman CWG. Drugs, hypertension and pregnancy. In: Studd J, editor. Progress in obstetrics and gynaecology, vol. 9. Edinburgh: Churchill Livingstone. 1991. p. 83–97.
4. Wallenburg HCS. Hemodynamics in hypertensive pregnancies. In: Rubin PC, editor. Handbook of hypertension, vol. 10. Amsterdam: Elsevier, 1988. p. 66–101.
5. Central hemodynamic observations in untreated preeclamptic patients;Visser;Hypertension,1991