@article{carvalho_2008,  title={Identification and characterization of excretory/secretory products of Giardia duodenalis trophozoites},  volume={14},  ISSN={1678-9199},  url={https://doi.org/10.1590/S1678-91992008000300016},  DOI={10.1590/S1678-91992008000300016},  number={3},  journal={Journal of Venomous Animals and Toxins including Tropical Diseases},  publisher={Centro de Estudos de Venenos e Animais Peçonhentos (CEVAP/UNESP)},  author={Carvalho, T.},  year={2008},  pages={553–553} }