@article{rivarola_2011,  title={The Athlete's heart and the endless pursuit of prediction factors},  volume={57},  ISSN={0104-4230},  url={https://doi.org/10.1590/S0104-42302011000300001},  DOI={10.1590/S0104-42302011000300001},  number={3},  journal={Revista da Associação Médica Brasileira},  publisher={Associação Médica Brasileira},  author={Rivarola, Esteban Wisnivesky Rocca},  year={2011},  month={May},  pages={247–248} }