Mohammed, Abbas A., Ali A. Al-Temimi, and Ahmed Abdul Amier Hussain Al-Amiery. 2011. “The Side Effects (cytogenetics ) of Methotrexate Drug on Male Germ Cells of Mus Musculus”. Journal of Biotechnology Research Center 5 (1):59-68. https://doi.org/10.24126/jobrc.2011.5.1.148.