Asthana, Amrata, JP Tiwari, and Bhaskar Prasad. 2020. “To Determine the Effect of Clonidine As an Adjuvant for Ropivacaine in Lower Limb Orthopedic Surgery”. Academia Anesthesiologica International 5 (1), 199-202. https://aijournals.com/index.php/aan/article/view/2352.