Bhatia, U., Patel, N., Patel, N. and 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), pp. 41–48. doi: 10.70284/njirm.v8i3.1242.