Paudyal P, Dongol UMS. Comparison of pain intensity between lidocaine gel and intrauretral tramadol with lidocaine gel during rigid cystoscopy in men. J. Kathmandu Med. Coll. [Internet]. 2024 Mar. 1 [cited 2025 Jul. 31];12(4):202-5. Available from: https://jkmc.com.np/ojs3/index.php/journal/article/view/1347