Affiliation: | 1.State University of Maringá, Avenida Colombo, 5.790, D - 90, Maringá, Paraná, CEP 87020-900, Brazil ;2.Federal University of Paraná, Rua João Maximiano, 426, Vila Operária, Jandaia do Sul, Paraná, CEP 86900-000, Brazil ;3.Federal University of Pelotas, Rua Gomes Carneiro, 1, Centro, P.O. Box 354, Pelotas, Rio Grande do Sul, CEP 96010-610, Brazil ; |