Baral, B. K., P. R. Poudel, S. Regmi, A. J. Karki, P. Koirala, and A. Shah. “Subarachnoid Block in Prone Position for Lower Limb Surgery”. Journal of Nepal Health Research Council, Vol. 18, no. 4, Jan. 2021, pp. 801-3, doi:10.33314/jnhrc.v18i4.2666.