@article{gomes_gomes_1998,  title={Cardioplegia retrógrada atrial com técnica aperfeiçoada},  volume={13},  ISSN={0102-7638},  url={https://doi.org/10.1590/S0102-76381998000200010},  DOI={10.1590/S0102-76381998000200010},  number={2},  journal={Brazilian Journal of Cardiovascular Surgery},  publisher={Sociedade Brasileira de Cirurgia Cardiovascular},  author={GOMES, Otoni Moreira and GOMES, Eros Silva},  year={1998},  month={Apr},  pages={158–161} }