Khan, A., F. Naz, M. Butt, F. Saeed, B. Munir, and A. Malik. “EFFICACY OF MECHANICAL BOWEL PREPARATION FOR ELECTIVE COLORECTAL SURGERY”. PAFMJ, Vol. 70, no. 2, Apr. 2020, pp. 291-96, https://mail.pafmj.org/index.php/PAFMJ/article/view/4176.