Koirala, K., G. Simkhada, N. Adhikari, R. Mukhia, and S. Shakya. “A Comparison of Outcomes of Four Ports Versus Three Ports Laparoscopic Cholecystectomy”. Journal of Manmohan Memorial Institute of Health Sciences 4, no. 1 (September 22, 2018): 66–71. Accessed April 25, 2024. https://www.nepjol.info/index.php/JMMIHS/article/view/21145.