Natural products and Chagas’ disease: the action of triterpenes acids isolated from Miconia species - Daniele da Silva Ferreira; Viviane Rodrigues Esperandim; Maria Gabriela Marçal; Nayara Bruna dos Reis Neres; Nayanne Larissa Cunha; Márcio Luís Andrade e Silva; Wilson Roberto Cunha (Universitas Scientiarum)