@article{ribeiro_dobri_abe_2021,  title={The frequency of blindness and visual impairment in the central-west region of Brazil},  volume={84},  ISSN={0004-2749},  url={https://doi.org/10.5935/0004-2749.202100104},  DOI={10.5935/0004-2749.202100104},  number={4},  journal={Arquivos Brasileiros de Oftalmologia},  publisher={Conselho Brasileiro de Oftalmologia},  author={Ribeiro, Guilherme B. and Dobri, Giuliano P. and Abe, Ricardo Y.},  year={2021},  month={Jul},  pages={402–403} }