Venkatraman, R., and R. Sandhiya. “EVALUATION OF EFFICACY OF EPIDURAL BUTORPHANOL TARTRATE FOR POSTOPERATIVE ANALGESIA”. International Journal of Pharmacy and Pharmaceutical Sciences 7, no. 2 (February 1, 2015): 52–54. Accessed April 24, 2024. https://journals.innovareacademics.in/index.php/ijpps/article/view/3837.