Nowacki, Luciana Cristina, Paulo Roberto Worfel, Paulo Francisco Arant Martins, Rosane Sampaio dos Santos, José Stechman-Neto, and Wesley Mauricio de Souza. “Analgesic Effect of Hypericum Perforatum, Valeriana Officinalis and Piper Methysticum for Orofacial Pain”. Brazilian Journal of Oral Sciences 14, no. 1 (March 30, 2015): 60–65. Accessed July 5, 2024. https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8640847.