Afzal, Surg Cdre Muhammad, et al. “ANALYSIS OF 200 CONSECUTIVE CASES OF LAPAROSCOPIC CHOLECYSTECTOMY IN A SINGLE UNIT AT A TERTIARY CARE HOSPITAL: Cases of Laparoscopic Cholecystectomy”. Pakistan Armed Forces Medical Journal, vol. 62, no. 4, Dec. 2012, pp. 514-8, https://pafmj.org/PAFMJ/article/view/1960.