Retrograde Intra-Renal Surgery Using Thulium Fibre Laser as an Alternative to Percutaneous Nephrolithotomy in the Management of Multiple Renal Stones: A Case Report and Literature Review. Nig J Uro [Internet]. 2026 Apr. 2 [cited 2026 Oct. 23];11(1-2):121-6. Available from: https://mail.nju.org.ng/index.php/nju/article/view/83