@article{pereira_soares_gimenez_2019,  title={The importance of appropriate reference values in patients suspected of having obstructive lung disease},  volume={45},  ISSN={1806-3713},  url={https://doi.org/10.1590/1806-3713/e20190299},  DOI={10.1590/1806-3713/e20190299},  number={6},  journal={Jornal Brasileiro de Pneumologia},  publisher={Sociedade Brasileira de Pneumologia e Tisiologia},  author={Pereira, Carlos Alberto de Castro and Soares, Maria Raquel and Gimenez, Andréa},  year={2019},  pages={e20190299} }