IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-11-37908 Original Research Paper Comparison of Efficacy of Dexmedetomidine V/S Fentanyl as an Adjuvant to 0.5%Ropivacaine in Ultrasound-Guided Supraclavicular Brachial Plexus Block in Upper Limb Surgery: A Randomized, Double Blind Interventional Study. Poonam Kalra Dr. Dr. Mukesh Kumar Dr. November 2021 10 11 01 02