@article{paschoal_donato_neves_2014,  title={Proposal Intensity Adequacy of Expiratory Effort and
                    Heart Rate Behavior During the Valsalva Maneuver in
                    Preadolescents},  volume={103},  ISSN={0066-782X},  url={https://doi.org/10.5935/abc.20140092},  DOI={10.5935/abc.20140092},  number={2},  journal={Arquivos Brasileiros de Cardiologia},  publisher={Sociedade Brasileira de Cardiologia - SBC},  author={Paschoal, Mario Augusto and Donato, Bruno de Sousa and Neves, Flávia Baroni},  year={2014},  month={Aug},  pages={146–153} }