Harichandan, A. K., Khuntia, M., Sahu, B. P., Dash, S., Biswal, D., Dalai, H., & Jena, S. . (2024). A randomized comparative study of epidural ropivacaine 0.2% with adjuvant fentanyl or nalbuphine for post-operative analgesia in lower limb surgeries. Asian Journal of Medical Sciences, 15(5), 58–63. https://doi.org/10.3126/ajms.v15i5.62539