Dr Komal Joshi, et al. “A COMPARISON OF COMBINED SPINAL EPIDURAL ANALGESIA WITH 0.1% ROPIVACAINE WITH FENTANYL VERSUS 0.1% BUPIVACAINE WITH FENTANYL DURING LABOUR”. Journal of Population Therapeutics and Clinical Pharmacology, vol. 32, no. 6, July 2025, pp. 531-7, https://doi.org/10.53555/kj186398.