@article{arroyo_santos_oliveira_assis neto_2021,  title={Prolonged use of letrozole causes morphological changes on gonads in <i>Galea spixii</i>},  volume={18},  ISSN={1984-3143},  url={https://doi.org/10.1590/1984-3143-AR2020-0029},  DOI={10.1590/1984-3143-AR2020-0029},  number={2},  journal={Animal Reproduction},  publisher={Colégio Brasileiro de Reprodução Animal},  author={Arroyo, Maria Angelica Machado and Santos, Paulo Ramos da Silva and Oliveira, Moacir Franco de and Assis Neto, Antônio Chaves de},  year={2021},  pages={e20200029} }