Chhettri, P., A. Shrestha, R. B. Basnet, and P. M. Shrestha. “Pre-Stenting for Retrograde Intrarenal Surgery: Need and Duration: A Prospective Randomized Clinical Study”. Nepalese Medical Journal, vol. 3, no. 2, Dec. 2020, pp. 361-5, doi:10.3126/nmj.v3i2.33050.