@article{ferrarezi_braga_ferreira_mendes_brandão_braga_carvalho_2021,  title={Spinal anesthesia for elective cesarean section. Bupivacaine associated with different doses of fentanyl: randomized clinical trial},  volume={71},  ISSN={2352-2291},  url={https://doi.org/10.1016/j.bjane.2021.03.030},  DOI={10.1016/j.bjane.2021.03.030},  number={6},  journal={Brazilian Journal of Anesthesiology},  publisher={Sociedade Brasileira de Anestesiologia (SBA)},  author={Ferrarezi, Wesla Packer Pfeifer and Braga, Angélica de Fátima de Assunção and Ferreira, Valdir Batista and Mendes, Sara Quinta and Brandão, Maria José Nascimento and Braga, Franklin Sarmento da Silva and Carvalho, Vanessa Henriques},  year={2021},  month={Nov},  pages={642–648} }