Koirala, R., Gurung, T., Rajbhandari, A. and Rai, P. 2019. Three-Port versus Four-Port Laparoscopic Cholecystectomy: A Randomized Controlled Trial. Nepal Medical College Journal. 21, 1 (Mar. 2019), 40–43. DOI:https://doi.org/10.3126/nmcj.v21i1.24849.