N. Hongviboonvate, S. Jitprapai, T. Mankongsrisuk, T. Taweemonkongsap, V. Woranisarakul, and C. Naulyong, “Factors affecting the durability of flexible ureteroscopes: An academic center review”, Insight Urol, vol. 41, no. 2, pp. 88–94, Dec. 2020.