@article{1998,  title={
     },  volume={93},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761998000800002},  DOI={10.1590/S0074-02761998000800002},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  year={1998},  month={Nov},  pages={04–21} }