1. Dorland's Illustrated Medical Dictionary, 26th ed. Philadelphia, W. B. Saunders, 1981
2. Council for Science and Society: Human procreation: Ethical aspects of the new techniques. O.U.P., 1984, p 90
3. Warnock M: A Question of Life: The Warnock Report on Human Fertilisation and Embryology. Oxford, Blackwell, 1985, p 72
4. Parliamentary Debates (Debates), Apr 1984, p 2317
5. For the differences between this and the earlier bill, see the Attorney-General's Second Reading Speech, Debates, 4 Oct 1984, p 556