IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-9-11-31971 Original Research Paper A randomized placebo control double blinded comparison of effect of intravenous dexmedetomidine on duration and intensity of brachial plexus block ANURAG JAIN Dr. DR ZARA WANI Dr. November 2020 9 11 01 02