Mohan Bhattrai, Kushal, et al. “Ultrasound-Guided Combined Femoral-Sciatic-Obturator Nerve Block Versus Sub-Arachnoid Block in Anterior Cruciate Ligament (ACL) Reconstruction: A Randomized Single-Blind Study”. Journal of Gandaki Medical College-Nepal, vol. 18, no. 1, June 2025, pp. 8-13, doi:10.3126/jgmc-n.v18i1.73115.