Hussein, M. E. “Ovatrine, a Compound from Plant Extracts, Used for Female Infertility Treatment and Increase the Number of Ovarian Follicles”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 9, no. 3, Feb. 2020, pp. 1238-44, doi:10.18203/2320-1770.ijrcog20200907.