1. Department of Maternal and Child Health, Faculty of Medicine; Federal University of Ceará; Fortaleza Brazil
2. Department of Pathology, Faculty of Medicine; Federal University of Ceará; Fortaleza Brazil
3. Department of Obstetrics and Gynecology; State University of Campinas; Campinas Brazil
4. Department of Obstetrics and Gynecology; Federal University of Rio Grande do Norte; Natal Brazil
5. Division of Molecular Biology; Prof. Eleutério Laboratory; Fortaleza Brazil
6. Division of Molecular Biology; Faculdade Souza Marques; Rio de Janeiro Brazil