@article{nóbrega_santana_sturm_teixeira_2004,  title={HygR and PurR plasmid vectors for episomal transfection of Trypanosoma cruzi},  volume={99},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02762004000500010},  DOI={10.1590/S0074-02762004000500010},  number={5},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Nóbrega, Otávio T and Santana, Jaime M and Sturm, Nancy R and Teixeira, Antônio RL},  year={2004},  month={Aug},  pages={513–516} }