@article{gonçalves_leite junior_leite_maia_gomes_lima_osterne_kallás_2016,  title={Treatment of Chronic Atrial Fibrillation During Surgery for Rheumatic Mitral Valve Disease},  volume={31},  ISSN={0102-7638},  url={https://doi.org/10.5935/1678-9741.20160070},  DOI={10.5935/1678-9741.20160070},  number={4},  journal={Brazilian Journal of Cardiovascular Surgery},  publisher={Sociedade Brasileira de Cirurgia Cardiovascular},  author={Gonçalves, Flavio Donizete and Leite Junior, Valdir Gonçalves and Leite, Vanusa Gonçalves and Maia, Marcelo Alves and Gomes, Otoni Moreira and Lima, Melchior Luiz and Osterne, Evandro César Vidal and Kallás, Elias},  year={2016},  month={Jul},  pages={318–324} }