1. Brown, J. S.: The effect of orally administered androgens on sperm motility.Fertil. Steril., 26, 305 (1975).
2. Cutuly, E., Cutuly, E. C.: Observations on spermatogenesis in rats.Endocrinology, 26, 503 (1940).
3. Eik-Nes, K. B.: The androgens of the testis. Dekker, New York, 1970.
4. Gemzell, C., Kjessler, B.: Treatment of infertility after human pituitary gonadotrophins.Lancet, i, 644 (1964).
5. Gemzell, C., Roos, P.: The physiology and chemistry of follicle stimulating hormone. In: The Pituitary Gland (Harris, G. W., Donovan, B. T. eds). Berkeley Univ. of California Press, Vol. 1, p. 492, 1966.