“Pre-emptive Analgesia in Laparoscopic Cholecystectomy by Intraperitoneal Instillation of Bupivacain”, J Fatima Jinnah Med Univ, vol. 10, no. 2, Jul. 2018, Accessed: Apr. 22, 2026. [Online]. Available: https://www.jfjmu.com/index.php/ojs/article/view/454