Manandhar, S. and Manandhar, K. (2019) “Efficacy of intravenous Tramadol in prevention of catheter-related bladder discomfort in upper urinary tract surgery”, Journal of Patan Academy of Health Sciences, 6(2), pp. 45–50. Available at: https://jpahs.edu.np/index.php/jpahs/article/view/161 (Accessed: 30 April 2025).