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”. Journal of Medical Biomedical and Applied Sciences, vol. 8, no. 8, Aug. 2020, pp. 513-20, doi:10.15520/jmbas.v8i8.250.