Salih Mahdi, K. and Naji A. AL-Hady, F. 2018. The correlation between Lactate dehydrogenase activity and sperm concentration in the seminal plasma of infertile men. Al-Kufa University Journal for Biology. 9, 1 (Dec. 2018). DOI:https://doi.org/10.36320/ajb/v9.i1.8024.