Ratnawat, A.; Bhati, F. S.; Khatri, C.; Srinivasan, B.; Sangwan, P.; Chouhan, D. S. Comparative Study Between Nerve Stimulator Guided Technique and Ultrasound Guided Technique of Supraclavicular Nerve Block for Upper Limb Surgery. Int J Res Med Sci 2017, 4, 2101-2106.