Sandeep Dubey, Rukhsana Najeeb, and Arshid Ahmad Sofi, “A Comparative Study of Efficacy of Clonidine and Dexmedetomidine As An Adjuvant to Ropivacaine in Ultrasound Guided Supraclavicular Brachial Plexus Block Vis-À-Vis Onset of Surgical Anaesthesia and Duration of Effect in Upper Limb Surgeries”, jmbas, vol. 8, no. 8, pp. 513–520, Aug. 2020.