Thakur, G. K., A. P. Dumre, N. Lamichhane, and R. K. Pokharel. “Efficacy of Selective Nerve Root Block in Lumbar Radiculopathy in Police Force”. Nepal Orthopaedic Association Journal, vol. 7, no. 1, June 2020, pp. 25-30, https://nepjol.info/index.php/NOAJ/article/view/58334.