Reddy, V. S., U. S. Sabitha, L. Krishna, and V. . “The Effects of Epidural Analgesia in Normal Labour”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 7, no. 9, Aug. 2018, pp. 3485-92, doi:10.18203/2320-1770.ijrcog20183414.