Bhatia, U., Patel, N., Patel, N., & Parikh, N. (2018). Comparison of Intrathecal Adjuvants with Bupivacaine Using Fentanyl 50g and Butorphanol 25g: Comparison of Intrathecal Adjuvants with Bupivacaine Using Fentanyl 50 ug and Butorphanol 25 ug. National Journal of Integrated Research in Medicine, 8(3), 41–48. Retrieved from http://nicpd.ac.in/ojs-/index.php/njirm/article/view/1242