@article{guimarães_carvalho_bocchi_2008,  title={Reproducibility of the self-controlled six-minute walking test in heart failure patients},  volume={63},  ISSN={1807-5932},  url={https://doi.org/10.1590/S1807-59322008000200008},  DOI={10.1590/S1807-59322008000200008},  number={2},  journal={Clinics},  publisher={Faculdade de Medicina / USP},  author={Guimarães, Guilherme Veiga and Carvalho, Vitor Oliveira and Bocchi, Edimar Alcides},  year={2008},  pages={201–206} }