@article{barbosa filho_benchimol-barbosa_cordovil_2002,  title={Nonrespiratory Sinus Arrhythmia},  volume={78},  ISSN={0066-782X},  url={https://doi.org/10.1590/S0066-782X2002000400008},  DOI={10.1590/S0066-782X2002000400008},  number={4},  journal={Arquivos Brasileiros de Cardiologia},  publisher={Sociedade Brasileira de Cardiologia - SBC},  author={Barbosa Filho, José and Benchimol-Barbosa, P. R. and Cordovil, Ivan},  year={2002},  month={Apr},  pages={409–411} }