1. N. Radhakrishnan and M. Alam, Indian J. exp. Biol.13, 70 (1975).
2. A.O. Prakash, R.B. Gupta and R. Mathur, Probe17, 315 (1978).
3. I.S. Johnson, J.G. Armstrong, M. Gorman and J.P. Burnett, Cancer Res.23, 1390 (1963).
4. M.S. Joshi and R.Y. Ambaye, Indian J. exp. Biol.6, 256 (1968).
5. T.V. Purandare, S.R. Munshi, S. Jayaraman and X.R. Swami in: Abstracts of Symp. Gen. comp. Endocr. p. 139. Endocr. Soc. India, Dharwar.