Lertsupakul, Boonlert. “Atypical Case of Ureteral Obstruction from Retroperitoneal Fibrosis”. Insight Urology 28, no. 2 (December 1, 2007): 81–85. Accessed February 1, 2023. https://he02.tci-thaijo.org/index.php/TJU/article/view/253164.