@article{2006,  title={Nota de desagravo},  volume={21},  ISSN={0102-7638},  url={https://doi.org/10.1590/S0102-76382006000400001},  DOI={10.1590/S0102-76382006000400001},  number={4},  journal={Brazilian Journal of Cardiovascular Surgery},  publisher={Sociedade Brasileira de Cirurgia Cardiovascular},  year={2006},  month={Oct},  pages={I–I} }