Diedhiou M, Ba E, Barboza D, et al. Bupivacaine-Fentanyl vs Ropivacaine-Fentanyl: Evaluation of two Spinal Anesthesia Protocols for Emergency Cesarean Section. J. Drug Delivery Ther. 2020;10(6-s):3-7. doi:10.22270/jddt.v10i6-s.4403