@article{kamel_siqueira-filho_barreto_benchimol_2001,  title={Congestive heart failure. Correlation between functional class and systolic and diastolic functions assessed by Doppler echocardiography},  volume={76},  ISSN={0066-782X},  url={https://doi.org/10.1590/S0066-782X2001000200004},  DOI={10.1590/S0066-782X2001000200004},  number={2},  journal={Arquivos Brasileiros de Cardiologia},  publisher={Sociedade Brasileira de Cardiologia - SBC},  author={Kamel, Cesar Selem and Siqueira-Filho, Aristarco G. and Barreto, Luiz Felipe Mena and Benchimol, Marcos},  year={2001},  month={Feb},  pages={132–135} }