@article{rudenko_1999,  title={Mechanisms Mediating Antigenic Variation in Trypanosoma brucei},  volume={94},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761999000200021},  DOI={10.1590/S0074-02761999000200021},  number={2},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Rudenko, Gloria},  year={1999},  month={Mar},  pages={235–237} }