@article{santos_1997,  title={Toxina botulíníca},  volume={60},  ISSN={0004-2749},  url={https://doi.org/10.5935/0004-2749.19970039},  DOI={10.5935/0004-2749.19970039},  number={5},  journal={Arquivos Brasileiros de Oftalmologia},  publisher={Conselho Brasileiro de Oftalmologia},  author={Santos, Ely Almeida},  year={1997},  month={Oct},  pages={547–548} }