@article{1996,  title={
       },  volume={91},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761996000200001},  DOI={10.1590/S0074-02761996000200001},  number={2},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  year={1996},  month={Mar} }