Vuyyuru Babu Rajendra Prasad. 2021. “A Clinical Comparison Between Plain Ropivacaine V/S Ropivacaine and Clonidine by Caudal Route for Post Operative Analgesia in Children”. International Journal of Health and Clinical Research 4 (12):47-51. https://ijhcr.com/index.php/ijhcr/article/view/1844.