Supraclavicular Brachial Plexus Block: Comparision of Two Different Doses of Dexmedetomidine as an Adjunct to Bupivacaine: A Study oleh Anil Radhakrishnan pillai, Nagalakshmi Palanisamy, RV Ranjan, Sagiev Koshy George, TR Ramachandran, Titu George Oommen, Sujatha Chinthavalli, Sunil Kumar Valasareddy