1. Abramovich, D. R., and Rowe, P. Fetal plasma testosterone levels at mid-pregnancy and at term. Journal of Endocrinology, 1973, 56, 621–622.
2. Acevedo, H. F., Axelrod, L. R., Ishikawa, E., and Takaki, F. Steroidogenesis in the human fetal testis: The conversion of pregnenolone-7a-H3 to dehydroepiandrosterone, testosterone, and 4-androstene-3, 17-dione. Journal of Clinical Endocrinology and Metabolism, 1961, 21, 1611–1613.
3. Acevedo, H. F., Axelrod, L. R., Ishikawa, E., and Takaki, F. Studies in fetal metabolism: II. Metabolism of progesterone-4-C14 and pregnenolone-7a-H3 in human fetal testes. Journal of Clinical Endocrinology and Metabolism, 1963, 23, 885–890.
4. Akram, H., and Wenger, J. P. Sécrétion d’estrone et d’oestradiol par le testicule féminise de l’embryon de poulet. Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences; D: Sciences Naturelle (Paris), 1967, 264, 1806–1807.
5. Akram, H., and Weniger, J. P. Sécrétion d’estrone et d’oestradiol par les gonads embryonnaires d’oiseaux. General and Comparative Endocrinology, 1969, 12, 568–573.