@article{negri_di santi_tabach_2010,  title={Bitter acids from hydroethanolic extracts of Humulus lupulus L., Cannabaceae, used as anxiolytic},  volume={20},  ISSN={0102-695X},  url={https://doi.org/10.1590/S0102-695X2010005000051},  DOI={10.1590/S0102-695X2010005000051},  number={6},  journal={Revista Brasileira de Farmacognosia},  publisher={Sociedade Brasileira de Farmacognosia},  author={Negri, Giuseppina and di Santi, Daniel and Tabach, Ricardo},  year={2010},  month={Dec},  pages={850–859} }