Panumatrassamee, K. and Opanuraks, J. (2023) “Is anesthetic gel necessary in outpatient flexible cystoscopy ?”, Chulalongkorn Medical Journal. Bangkok, Thailand, 52(3). available at: https://he05.tci-thaijo.org/index.php/CMJ/article/view/1096 (accessed: 13 September 2026).