Patents on herbal medicines in Brazil: an analysis of the status of the applications in the period 1995-2021. Rev Fitos [Internet]. 2024 Jan. 8 [cited 2025 Apr. 15];18(Suppl. 1):e1535. Available from: https://revistafitos.far.fiocruz.br/index.php/revista-fitos/article/view/1535