“A Rare Case: Submucosal Stone Formation After 20-Years of Dextranomer Hyaluronic Copolymer Endoscopic Sub Ureteric Injection for Vesicoureteral Reflux: Endoscopic Subureteric Injection”. Nigerian Journal of Urology 11, no. 1-2 (April 2, 2026): 131–134. Accessed October 23, 2026. https://mail.nju.org.ng/index.php/nju/article/view/62.