@article{nakamura_ganem_rugolo_castiglia_2009,  title={Effects on mother and fetus of epidural and combined spinal-epidural techniques for labor analgesia},  volume={55},  ISSN={0104-4230},  url={https://doi.org/10.1590/S0104-42302009000400014},  DOI={10.1590/S0104-42302009000400014},  number={4},  journal={Revista da Associação Médica Brasileira},  publisher={Associação Médica Brasileira},  author={Nakamura, Giane and Ganem, Eliana Marisa and Rugolo, Ligia Maria Suppo de Souza and Castiglia, Yara Marcondes Machado},  year={2009},  pages={405–409} }