SHIVANI, M.; CHANANA, D. P.; KANTHED, P. Comparative evaluation of continuous epidural infusion of 0.0625% Bupivacaine + 0.0002% Fentanyl and 0.1% Ropivacaine + 0.0002% Fentanyl for labour analgesia. International Journal of Medical Research and Review, v. 8, n. 1, p. 14-23, 1 Feb. 2020.