@article{berton_mendes_olivo-neto_benedetto_gazzana_2021,  title={Pulmonology approach in the investigation of chronic unexplained dyspnea},  volume={47},  ISSN={1806-3713},  url={https://doi.org/10.36416/1806-3756/e20200406},  DOI={10.36416/1806-3756/e20200406},  number={1},  journal={Jornal Brasileiro de Pneumologia},  publisher={Sociedade Brasileira de Pneumologia e Tisiologia},  author={Berton, Danilo Cortozi and Mendes, Nathalia Branco Schweitzer and Olivo-Neto, Pedro and Benedetto, Igor Gorski and Gazzana, Marcelo Basso},  year={2021},  pages={e20200406} }