1. Department of Maternal and Child Health, Faculty of MedicineFederal University of Ceará Fortaleza Brazil
2. Division of Molecular BiologyProf. Eleuterio Laboratory Fortaleza Brazil
3. Gynecology and Obstetrics DepartmentFederal University of Rio Grande do Norte Natal Brazil
4. Gynecology and Obstetrics DepartmentState University of Campinas Campinas Brazil