El-Hussien, M., N. Mokhtar, and E. Khorshed. “C-MYC Protein Expression and High Ki-67 Proliferative Index Are Predictives of Disease Relapse in Diffuse Large B Cell Lymphoma”. Asian Pacific Journal of Cancer Biology, Vol. 6, no. 1, Mar. 2021, pp. 15-20, doi:10.31557/apjcb.2021.6.1.15-20.