S. S. Al-Dujaily, J. K. . Al-Arak, J. M. Ethawi, haider Al-Ebrahimi, and muna Yosif, “Effect of maca(Lepidium meyenii) aqueous extract on the epididymal sperms quality and the DNA normality of vasectomized mature mice:model forobstructive azoospermia in men”, JOBRC, vol. 12, no. 2, pp. 73–81, Jun. 2018.