N. NATARAJAN, G. KUPPUSAMY, A. RAMANATHAN, and S. DAVE, “A COMPARATIVE STUDY OF DEXMEDETOMIDINE AND CLONIDINE AS AN ADJUVANT TO ROPIVACAINE IN SUPRACLAVICULAR BRACHIAL PLEXUS BLOCK”, Asian J Pharm Clin Res, vol. 15, no. 2, pp. 119–122, Feb. 2022.