@article{korn_villar_azevedo_2019,  title={Hoarseness and vocal tract discomfort and associated risk factors in air traffic controllers},  volume={85},  ISSN={1808-8694},  url={https://doi.org/10.1016/j.bjorl.2018.02.009},  DOI={10.1016/j.bjorl.2018.02.009},  number={3},  journal={Brazilian Journal of Otorhinolaryngology},  publisher={Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial.},  author={Korn, Gustavo Polacow and Villar, Anna Carolina and Azevedo, Renata Rangel},  year={2019},  month={May},  pages={329–336} }