Huabkong, M., C. Bunyaratavej, W. Ungchareonwattana, S. Phajik, and R. Sittimak. “Characteristics of ureteral stent encrustation in non-stone forming patients”. Insight Urology, vol. 34, no. 1, June 2013, pp. 1-12, https://he02.tci-thaijo.org/index.php/TJU/article/view/63147.