Bhattarai, P. R., A. J. Rayamajhi, R. K. Yadav, S. C. Paudel, A. Pangeni, B. Byanjankar, and R. Pandit. “Comparison of Ultrasound-Guided Abdominal Nerve Blocks and Subarachnoid Block As an Anaesthetic Technique for Appendectomy: A Retrospective Study”. Journal of Society of Anesthesiologists of Nepal, vol. 4, no. 1, June 2017, pp. 16-22, doi:10.3126/jsan.v4i1.17384.