Amrata Asthana, JP Tiwari, DK Tripathi, and Bhaskar Prasad. 2020. “Comparative Evaluation of 0.75% Ropivacaine With Ropivacaine 0.75% and Clonidine in Combined Sciatic Femoral Nerve Block for Orthopedic Leg Surgeries”. Academia Anesthesiologica International 5 (1), 195-98. https://aijournals.com/index.php/aan/article/view/2307.