@article{queiroz_lucena_ferreira_rodrigues_paula_2013,  title={Correlation between cup-to-disc ratio and cup/retrobulbar optic nerve diameter proportion assessed by high-resolution ultrasound in glaucomatous eyes},  volume={76},  ISSN={0004-2749},  url={https://doi.org/10.1590/S0004-27492013000500004},  DOI={10.1590/S0004-27492013000500004},  number={5},  journal={Arquivos Brasileiros de Oftalmologia},  publisher={Conselho Brasileiro de Oftalmologia},  author={Queiroz, Wilian Silva and Lucena, Daniel da Rocha and Ferreira, Juliana de Lucena Martins and Rodrigues, Maria de Lourdes Veronese and Paula, Jayter Silva},  year={2013},  month={Sep},  pages={274–277} }