Preecha, C. (2021) “Comparison of the Effectiveness of Reducing Pain Using Lubricating Gel with and without Lidocaine during Cystoscopy, Phatthalung Hospital”, Health Science Journal of Thailand, 3(1), pp. 41–49. available at: https://he02.tci-thaijo.org/index.php/HSJT/article/view/242679 (accessed: 20 September 2026).