Shah, Rajiv, et al. “Retrograde Intrarenal Surgery Versus Mini-Percutaneous Nephrolithotomy for Lower Calyceal Stones of ≤ 2 Cm”. Journal of College of Medical Sciences-Nepal, vol. 19, no. 4, Dec. 2023, pp. 399-05, doi:10.3126/jcmsn.v19i4.56590.