@article{valle_2000,  title={Transgênicos sem maniqueísmo},  volume={7},  ISSN={0104-5970},  url={https://doi.org/10.1590/S0104-59702000000300017},  DOI={10.1590/S0104-59702000000300017},  number={2},  journal={História, Ciências, Saúde-Manguinhos},  publisher={Casa de Oswaldo Cruz, Fundação Oswaldo Cruz},  author={Valle, Silvio},  year={2000},  month={Jul},  pages={493–498} }