@article{2002,  title={
     },  volume={22},  ISSN={0100-736X},  url={https://doi.org/10.1590/S0100-736X2002000200001},  DOI={10.1590/S0100-736X2002000200001},  number={2},  journal={Pesquisa Veterinária Brasileira},  publisher={Colégio Brasileiro de Patologia Animal - CBPA},  year={2002},  month={Apr} }