Kumar Saharia H, Devi R. Effects of buprenorphine and fentanyl in brachial plexus block on operative and post-operative analgesia: a clinical comparative study. Int J Med Res Rev [Internet]. 2016Aug.31 [cited 2024Apr.29];4(8):1351-8. Available from: https://ijmrr.medresearch.in/index.php/ijmrr/article/view/652