Abd-Al Kareem, Maha Khalid. “The Effect of Sperm Preparation Medium on Malondialdehyde Concentration in the Seminal Plasma of Normozoospermic and Oligoastheno- Teratozoospermic Patient”. Journal of Biotechnology Research Center, vol. 3, no. 2, June 2009, pp. 74-79, doi:10.24126/jobrc.2009.3.2.72.