Bhattarai, R., Paudel, B., Subba, S., & Das, C. R. (2020). Caudal Epidural Block for Ureteroscopic Lithotripsy (Ursl): A Prospective Study. Birat Journal of Health Sciences, 5(1), 942–945. https://doi.org/10.3126/bjhs.v5i1.29630