Toryila, Joseph, Amadi K., Odeh S.O, Adelaiye A.B, Mohammed A., Achie L N, and Egesie U.G. “Effect of Combined Oral Contraceptive on Erythropoietin in Female Waster Rats”. International Journal of Biological Research 2, no. 2 (July 9, 2014): 67–68. Accessed April 27, 2024. https://sciencepubco.com/index.php/IJBR/article/view/2894.