Kermani, Touraj, Iraj Kermani, Zhaleh Faham, and Roya Dolatkhah. “Ki-67 Status in Patients With Primary Breast Cancer and Its Relationship With Other Prognostic Factors”. Biomedical Research and Therapy 6, no. 2 (February 17, 2019): 2986-2991. Accessed November 25, 2020. http://www.bmrat.org/index.php/BMRAT/article/view/520.