@article{simpson_1992,  title={Tegumental proteins of Schistosoma mansoni: complex biomolecules and potent antigens},  volume={87},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761992000800002},  DOI={10.1590/S0074-02761992000800002},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Simpson, Andrew J. G.},  year={1992},  pages={11–17} }