@article{oliveira_1992,  title={Causas de cegueira na infância},  volume={55},  ISSN={0004-2749},  url={https://doi.org/10.5935/0004-2749.19920024},  DOI={10.5935/0004-2749.19920024},  number={4},  journal={Arquivos Brasileiros de Oftalmologia},  publisher={Conselho Brasileiro de Oftalmologia},  author={Oliveira, Paulo Ricardo de},  year={1992},  month={Jul},  pages={172–175} }