@article{jotz_bittencourt_2020,  title={Why We Need to Use and which Mask Types are Effective against the Novel Coronavirus (COVID-19)?},  volume={24},  ISSN={1809-4864},  url={https://doi.org/10.1055/s-0040-1713588},  DOI={10.1055/s-0040-1713588},  number={3},  journal={International Archives of Otorhinolaryngology},  publisher={Fundação Otorrinolaringologia},  author={Jotz, Geraldo Pereira and Bittencourt, Aline Gomes},  year={2020},  month={Jul},  pages={255–257} }