Altaf Ahmed Shaikh, Col (R) Bushra Ayaz, Saira Bugti, Brig Shoaib Nayyar Hashmi. “Precancerous Lesions in Routine Cholecystectomy Specimens”. Journal of Peoples University of Medical &Amp; Health Sciences Nawabshah. (JPUMHS), vol. 5, no. 3, Sept. 2015, pp. 103-6, http://121.52.155.46/index.php/ojs/article/view/193.