@article{vega_esteves-souza_vieira_mathias_braz-filho_echevarria_2007,  title={Flavonoids from Annona dioica leaves and their effects in Ehrlich carcinoma cells, DNA-topoisomerase I and II},  volume={18},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532007000800016},  DOI={10.1590/S0103-50532007000800016},  number={8},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Vega, Maria R. G. and Esteves-Souza, Andressa and Vieira, Ivo J. C. and Mathias, Leda and Braz-Filho, Raimundo and Echevarria, Aurea},  year={2007},  pages={1554–1559} }