Ultrasound Guided Supraclavicular Brachial Plexus Block For Upperlimb Surgeries With Single Injection And Double Inhection. A Randomized Comparative Study. Journal title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) Authors: Sateesh Kumar Potnuru, G.K.V. Satyanarayana Subject(s):