S., Kiran Kumar, and Kishan Rao. “The Efficacy of Epidural Ropivacaine 0.75% and Levobupivacaine 0.5% in Abdominal and Lower Limb Surgeries- a Comparative Study”. International Journal of Research in Medical Sciences 4, no. 9 (December 18, 2016): 4101–4107. Accessed October 15, 2025. https://www.msjonline.org/index.php/ijrms/article/view/198.