S. . Patra, R. Chanda, and C. Biswas, “Comparison of perineural administration of dexmedetomidine and fentanyl as an adjuvant to 0.5% bupivacaine to enhance the quality of supraclavicular brachial plexus nerve block in upper limb surgeries - A prospective, triple-blind, randomized study”, Asian J Med Sci, vol. 13, no. 7, pp. 56–62, Jul. 2022.