1. Porter, D. G. in Biology of Relaxin and its Role in the Human (eds Bigazzi, M., Greenwood, F.C. & Gasparri, F.) 114–124 (Excerpta Medica, Amsterdam, 1983).
2. Porter, D. G. in Oxford Reviews of Reproductive Biology Vol. 1 (ed. Finn, C. A.) 1–57 (Clarendon, Oxford, 1979).
3. Bradshaw, J. M. C., Downing, S. J., Moffatt, A., Hinton, J. C. & Porter, D. G. J. Reprod. Fert. 63, 145–153 (1981).
4. Clarke, G., Fall, C. H. D., Lincoln, D. W. & Merrick, L. P. Br. J. Pharmac. 63, 519–528 (1978).
5. Lincoln, D. W., Hill, A. & Wakerley, J. B. J. Endocr. 57, 459–476 (1973).