Iqbal, D., M. S. Khan, A. Khan, and S. Ahmad. “Extenuating the Role of Ficus Virens Ait and Its Novel Bioactive Compound on Antioxidant Defense System and Oxidative Damage in Cigarette Smoke Exposed Rats”. Biomedical Research and Therapy, Vol. 3, no. 07, July 2016, pp. 723-32, http://bmrat.org/index.php/BMRAT/article/view/107.