@article{bertolazi_fagondes_hoff_pedro_menna barreto_johns_2009,  title={Portuguese-language version of the Epworth sleepiness scale: validation for use in Brazil},  volume={35},  ISSN={1806-3713},  url={https://doi.org/10.1590/S1806-37132009000900009},  DOI={10.1590/S1806-37132009000900009},  number={9},  journal={Jornal Brasileiro de Pneumologia},  publisher={Sociedade Brasileira de Pneumologia e Tisiologia},  author={Bertolazi, Alessandra Naimaier and Fagondes, Simone Chaves and Hoff, Leonardo Santos and Pedro, Vinícius Dallagasperina and Menna Barreto, Sérgio Saldanha and Johns, Murray W},  year={2009},  month={Sep},  pages={877–883} }