@article{braz_toro_sakuma_machado_sakano_2023,  title={International Frontal Sinus Anatomy Classification (IFAC): evaluation of frontoethmoidal cells prevalence in a Brazilian population},  volume={89},  ISSN={1808-8694},  url={https://doi.org/10.1016/j.bjorl.2023.101309},  DOI={10.1016/j.bjorl.2023.101309},  number={6},  journal={Brazilian Journal of Otorhinolaryngology},  publisher={Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial.},  author={Braz, Ruth Ellen Fernandes de Castro Dantas and Toro, Mariana Dalbo Contrera and Sakuma, Emerson Taro Inoue and Machado, Vinicius Silles Brandão and Sakano, Eulalia},  year={2023},  pages={101309} }