References
- 1974 . “Microbes may replace yams for making the Pill”; . New Scientist , 63 : 589 Anon.
- 1974 . International Agency for Research on Cancer Working Group on the Evaluation of Carcinogenic Risk of Chemicals to Man: Sex Hormones . I.A.R.C. Monographs , 6 : 3 – 243 .
- Nora , A. H. and Nora , J. J. 1975 . “A syndrome of multiple congenital anomalies associated with teratogenic exposure”; . Arch. Environ. Hlth. , 30 : 17 – 21 .