Murthy, V. S. S. N., Hari Kiran Verma, N., & Acharya, A. (2018). A randomised prospective comparative study of evaluation of dexmedetomidine an adjuvant to ropivacaine for ultrasound guided supraclavicular block. International Journal of Clinical Trials, 5(3), 127–131. https://doi.org/10.18203/2349-3259.ijct20182060