@article{britto_probst_andrade_samora_hernandes_marinho_karsten_pitta_parreira_2013,  title={Reference equations for the six-minute walk distance based
               on a Brazilian multicenter study},  volume={17},  ISSN={1413-3555},  url={https://doi.org/10.1590/S1413-35552012005000122},  DOI={10.1590/S1413-35552012005000122},  number={6},  journal={Brazilian Journal of Physical Therapy},  publisher={Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia  },  author={Britto, Raquel R. and Probst, Vanessa S. and Andrade, Armele F. Dornelas de and Samora, Giane A. R. and Hernandes, Nidia A. and Marinho, Patrícia E. M. and Karsten, Marlus and Pitta, Fabio and Parreira, Veronica F.},  year={2013},  month={Nov},  pages={556–563} }