“Comparative Study of Epidural Ropivacaine 0.75% and Bupivacaine 0.5% With Fentanyl for Elective Caesarean Section in Andhra Pradesh Population”. 2023. Indian Journal of Public Health Research & Development 14 (3): 370-75. https://doi.org/10.37506/ijphrd.v14i3.19432.