1. Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil.
2. Dental Oncology Service, São Paulo State Cancer Institute, São Paulo University Medical School, São Paulo, SP, Brazil.
3. Oral Medicine and Pathology Research Group, Department of Basic Biomedical Sciences, Faculty of Health Sciences, University of Talca, Talca, Maule, Chile.
4. Division of Oral Medicine, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil.