Sushant Saxena, Sana Hussain, Mayank Karode and Ashish Saraogi 2021. Comparative Study Between Bupivacaine and Bupivacaine with Tramadol in Different Doses for Supraclavicular Brachial Plexus Block. International Journal of Health and Clinical Research. 4, 22 (Dec. 2021), 291–296.