Clonidine as adjuvant to 0.75% ropivacaine in supraclavicular brachial plexus block for post operative analgesia: A single blind randomized controlled trial. Int Jour of Biomed Res [Internet]. 2014 May 30 [cited 2024 Oct. 19];5(5):327-9. Available from: https://ssjournals.co.in/index.php/ijbr/article/view/1006