Vegetal test-system investigation on cytotoxicity of water from urban streams located in the northeastern region of Maringá, Paraná State, Brazil - doi: 10.4025/actascibiolsci.v33i1.4924. Acta Scientiarum. Biological Sciences, [S. l.], v. 33, n. 1, p. 71–77, 2011. DOI: 10.4025/actascibiolsci.v33i1.4924. Disponível em: https://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/4924. Acesso em: 29 maio. 2026.