1. Department of Oral Diagnosis Piracicaba Dental School, University of Campinas Piracicaba Brazil
2. Oral Medicine Unit, Departamento de Clínica e Odontologia Preventiva Universidade Federal de Pernambuco Recife Brazil
3. Department of Clinical Genetics University Hospital of Southern Denmark, Vejle and Institute of Regional Health Research, University of Southern Denmark Odense Denmark
4. Laboratory of Oral Histopathology, School of Health Sciences University of Brasília Brasilia Brazil
5. Brazilian Bioscience National Laboratory Brazil Center of Research in Energy and Materials Campinas Brazil