Tamrakar, K. K., Khwaunju, P., & Sah, K. B. (2017). Comparative study between 3-ports and 4-ports laparoscopic cholecystectomy for the cases of gall stone disease. Journal of Chitwan Medical College, 7(1), 1–6. Retrieved from https://nepjol.info./index.php/JCMC/article/view/17356