1. Department of Pathology, Biological Sciences Centre, Londrina State University, Rodovia Celso Garcia Cid KM480 PR445, Caixa Postal 10.011, 86057-970 Londrina, PR, Brazil
2. Department of Nursing, Health Science Centre, Londrina State University, Avenue Robert Koch 60, 86038-350 Londrina, PR, Brazil
3. Department of Pharmaceutical Sciences, Health Science Centre, Londrina State University, Avenue Robert Koch 60, 86038-350 Londrina, PR, Brazil