Maharjan S, Shrestha S. Intraperitoneal and periportal injection of bupivacaine for pain after laparoscopic cholecystectomy. Kathmandu Univ. Med. J. [Internet]. 2009 Apr. 13 [cited 2024 Jul. 18];7(1):50-3. Available from: https://nepjol.info/index.php/KUMJ/article/view/1765