Manandhar, Sujita, and Kishor Manandhar. “Efficacy of Intravenous Tramadol in Prevention of Catheter-Related Bladder Discomfort in Upper Urinary Tract Surgery”. Journal of Patan Academy of Health Sciences 6, no. 2 (December 31, 2019): 45–50. Accessed April 24, 2024. https://www.nepjol.info/index.php/JPAHS/article/view/27229.