@article{simonetti_schatzmayr_simonetti_2003,  title={Human immunodeficiency virus type 1: drug resistance in treated and untreated Brazilian children},  volume={98},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02762003000600021},  DOI={10.1590/S0074-02762003000600021},  number={6},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Simonetti, SRR and Schatzmayr, HG and Simonetti, JP},  year={2003},  month={Sep},  pages={831–837} }