Irfan, M., K. Sughra, M. N. Iqbal, S. Mehmood, A. Shaheen, and Z. Anwar. “Arresting Cancer Progression by VEGF Inhibitions: An Update”. PSM Microbiology, vol. 1, no. 2, Nov. 2016, pp. 72-78, https://psmjournals.org/index.php/microbiol/article/view/106.