Ali Sheikh, I., Ahmed Memon, S., & Misbah Rashid, M. (2017). THREE-PORT VERSUS FOUR-PORT LAPAROSCOPIC CHOLECYSTECTOMY - A TWO YEARS EXPERIENCE AT COMBINED MILITARY HOSPITAL MALIR CANTT KARACHI: Three-Port Versus Four-Port Laparoscopic Cholecystectomy. Pakistan Armed Forces Medical Journal, 67(2), 338-42. https://pafmj.org/PAFMJ/article/view/423