T. Jafer, Z.M. and Shubber, E.K. 2010. Cytogenetic studies of methotrexate drug on the peripheral blood samples from patients suffered of ulcerative colitis & ulcerative colitis developed to pseudopolyps &colon cancer. Journal of Biotechnology Research Center. 4, 1 (Jan. 2010), 44–53. DOI:https://doi.org/10.24126/jobrc.2010.4.1.92.