Mitra, Subhro, Geeta Bhandari, and Rahul Chauhan. “Comparative Evaluation of Newer Local Anesthetics (Levobupivacaine and Ropivacaine) With Bupivacaine, in Lumbar Epidural Anesthesia for Hip Surgeries: A Randomized Controlled Trial”. Academia Anesthesiologica International 1, no. 1 (June 15, 2016): 28-32. Accessed May 5, 2024. https://aijournals.com/index.php/aan/article/view/45.