@article{macari_portela_pohlit_2006,  title={Antioxidant, cytotoxic and UVB-absorbing activity of Maytenus guyanensis Klotzch. (Celastraceae) bark extracts},  volume={36},  ISSN={0044-5967},  url={https://doi.org/10.1590/S0044-59672006000400012},  DOI={10.1590/S0044-59672006000400012},  number={4},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Macari, Patrícia de Almeida Telles and Portela, Cíntia Nicácio and Pohlit, Adrian Martin},  year={2006},  month={Oct},  pages={513–518} }