Samal D, Sahoo R, Patra K. Multisite ropivacaine for pain relief after laparoscopic cholecystectomy: a placebo controlled study at a tertiary care teaching hospital. Int Surg J [Internet]. 2017 Dec. 26 [cited 2026 Feb. 20];5(1):115-9. Available from: https://www.ijsurgery.com/index.php/isj/article/view/2336