Kanna, Vijay, Abdul Hakkim, Murugadoss Kanakasabai, and Satheesh Govindan. 2017. “A Clinical Study of the Effectiveness of Continuous Epidural Labour Analgesia for Vaginal Delivery With 0.0625% Bupivacaine With 0.0002% Fentanyl”. International Journal of Research in Medical Sciences 3 (10):2553-60. https://doi.org/10.18203/2320-6012.ijrms20150789.