@article{nowacki_worfel_martins_santos_stechman-neto_souza_2015,  title={Analgesic effect of Hypericum perforatum, Valeriana officinalis and Piper
               methysticum for orofacial pain},  volume={14},  ISSN={1677-3225},  url={https://doi.org/10.1590/1677-3225v14n1a12},  DOI={10.1590/1677-3225v14n1a12},  number={1},  journal={Brazilian Journal of Oral Sciences},  publisher={Faculdade de Odontologia de Piracicaba - UNICAMP},  author={Nowacki, Luciana Cristina and Worfel, Paulo Roberto and Martins, Paulo Francisco Arant and Santos, Rosane Sampaio dos and Stechman-Neto, José and Souza, Wesley Mauricio de},  year={2015},  month={Jan},  pages={60–65} }