@article{headley_graça_2000,  title={Canine distemper: epidemiological findings of 250 cases},  volume={37},  ISSN={1413-9596},  url={https://doi.org/10.1590/S1413-95962000000200009},  DOI={10.1590/S1413-95962000000200009},  number={2},  journal={Brazilian Journal of Veterinary Research and Animal Science},  publisher={Faculdade de Medicina Veterinária e Zootecnia / Universidade de São Paulo},  author={HEADLEY, Selwyn Arlington and GRAÇA, Dominguita Lühers},  year={2000},  pages={136–140} }