“Comparison of the Mean Duration of Analgesia of Intraperitoneal Bupivacaine and Ropivacaine Versus Placebo After Laparoscopic Cholecystectomy”. Medical Forum Monthly 35, no. 4 (April 30, 2024). Accessed September 25, 2025. https://medicalforummonthly.com/index.php/mfm/article/view/4364.