Comparison of postoperative analgesic effectiveness of combined intraperitoneal instillation and periportal infiltration of bupivacaine with intraperitoneal instillation or periportal infiltration alone for laparoscopic cholecystectomy. J. Soc. Anesth. Nep. [Internet]. 2015 Oct. 3 [cited 2026 Jul. 13];1(2):59-64. Available from: https://nepjol.info/index.php/JSAN/article/view/13571