Batool, Z., N. A. Yousafzai, M. S. Murad, S. Shahid, and A. Iqbal. “Lead Toxicity and Evaluation of Oxidative Stress in Humans”. PSM Biological Research, vol. 2, no. 2, Apr. 2017, pp. 79-82, https://journals.psmpublishers.org/index.php/biolres/article/view/64.