A Preliminary clinical observation on the effect of the gel containing black raspberry extract on patients with persistent human papilloma virus infection. Journal of Food Bioactives, [S. l.], v. 12, 2020. DOI: 10.31665/JFB.2020.12252. Disponível em: http://www.isnff-jfb.com/index.php/JFB/article/view/168. Acesso em: 23 oct. 2026.