@article{andrade_freitas_1991,  title={Hyperplasia of elastic tissue in hepatic schistosomal fibrosis},  volume={86},  ISSN={0074-0276},  url={https://doi.org/10.1590/S0074-02761991000400014},  DOI={10.1590/S0074-02761991000400014},  number={4},  journal={Memórias do Instituto Oswaldo Cruz},  publisher={Instituto Oswaldo Cruz, Ministério da Saúde},  author={Andrade, Zilton A. and Freitas, Luiz Antonio R.},  year={1991},  month={Oct},  pages={447–456} }