Chansirirattanakul, T., Thaidumrong, T., Choonhaklai, V., Chittchang, V., Pumpaisanchai, S., Wongwattanasatien, N., Sindhubodee, S., Kosrisirikul, C., Huabkong, M., & Duangkae, S. (2018). Comparison between cooled and room temperature lidocaine gel in reducing urethral discomfort during cystoscopy. Insight Urology, 39(2), 28–34. Retrieved from https://he02.tci-thaijo.org/index.php/TJU/article/view/115049