1. Why Mothers Die 1997–1999. The Confidential Enquiries into Maternal Deaths in the United Kingdom,2001
2. Weis, F. R. Peak, J. Effects of oxytocin on blood pressure during pregnancy, Anesthesiology, 1974, 40, 189, 190
3. Weis, F. R. Markello, R. Mo, B. Bochiechio, P. Cardiovascular effects of oxytocin, Obstet Gynecol, 1975, 46, 211, 214
4. Secher, N. J. Arnsbo, P. Wallin, L. Haemodynamic effects of oxytocin and methylergometrine on the systemic and pulmonary circulations of pregnant anaesthetised women, Acta Obstet Gynecol Scand, 1978, 57, 97, 103
5. British National Formulary. Published by the British Medical Association and the Royal Pharmaceutical Society of Great Britain,2001