PARKASH KATARIA, A.; JAREWAL, V.; SINGH, G.; PAL ATTRI, J. Comparison of dexmedetomidine and clonidine as an adjuvant to levobupivacaine in supraclavicular brachial plexus block. International Journal of Medical Research and Review, v. 5, n. 4, p. 399-404, 30 Apr. 2017.