1. French, R. D. Antivivisection and Medical Science in Victorian Society (Princeton Univ. Press, Princeton, 1975).
2. Lederer, S. E. in Vivisection in Historical Perspective (ed. Rupke, N. A.) 236258 (Croon Helm Ltd, Beckenham, Kent, 1987).
3. Regan, T. The Case for Animal Rights (Univ. California Press, Berkeley, 1983).
4. Matfield, M. The ALF: terrorist attacks on medical research. Scand. J. Lab. Anim. Sci. 23, 3135 (1996).
5. Matfield, M. Addressing the two basic questions is it necessary and is it cruel? Res. Def. Soc. News 89 (April 1996).