AMRATA ASTHANA; JP TIWARI; DK TRIPATHI; BHASKAR PRASAD. 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, v. 5, n. 1, p. 195-98, 11 Jul. 2020.