Iqbal, M., S. Bugti, S. Mirza, and M. Akbar Hassan. “Vancomycin Resistant Enterococcus”. Journal of Rawalpindi Medical College, Vol. 23, no. 2, May 2019, pp. 109-12, http://www.journalrmc.com/index.php/JRMC/article/view/1127.