Tan, A., Lee, S., Kime, D., Chao, T., Lim, H., Chou, R., . . . ZOOLOGY. (2014). 17alpha,20alpha-dihydroxy-4-pregnen-3-one, not its 20beta isomer, is produced from 17alpha-hydroxyprogesterone by spermatozoa of secondary male groupers (Epinephelus tauvina) derived from females implanted with 17alpha-methyltestosterone.

Tan, A.M., S.T Lee, D.E Kime, T.M Chao, H.S Lim, R. Chou, T.J Lam, C.H Tan, و ZOOLOGY. 17alpha,20alpha-dihydroxy-4-pregnen-3-one, Not Its 20beta Isomer, Is Produced From 17alpha-hydroxyprogesterone By Spermatozoa of Secondary Male Groupers (Epinephelus Tauvina) Derived From Females Implanted With 17alpha-methyltestosterone. 2014.

Tan, A.M., et al. 17alpha,20alpha-dihydroxy-4-pregnen-3-one, Not Its 20beta Isomer, Is Produced From 17alpha-hydroxyprogesterone By Spermatozoa of Secondary Male Groupers (Epinephelus Tauvina) Derived From Females Implanted With 17alpha-methyltestosterone. 2014.