@article{carvalho_sebold_calegari_oliveira_schuelter-trevisol_2018,  title={Comparison of postoperative analgesia with methadone versus morphine in cardiac surgery},  volume={68},  ISSN={0034-7094},  url={https://doi.org/10.1016/j.bjane.2017.12.001},  DOI={10.1016/j.bjane.2017.12.001},  number={2},  journal={Revista Brasileira de Anestesiologia},  publisher={Sociedade Brasileira de Anestesiologia},  author={Carvalho, Ana Carolina and Sebold, Fábio Jean Goulart and Calegari, Patrícia Mello Garcia and Oliveira, Benhur Heleno de and Schuelter-Trevisol, Fabiana},  year={2018},  month={Mar},  pages={122–127} }