Khan, Saad Ullah, et al. “EMERGENCY LAPAROSCOPIC CHOLECYSTECTOMY: IS DEDICATED HOT GALL BLADDER LIST COST EFFECTIVE?”. Journal of Ayub Medical College Abbottabad, vol. 31, no. 1, Jan. 2019, pp. 3-7, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/5545.