1. Oral Pathology Section; School of Dentistry; Pontifical Catholic University of Minas Gerais (PUC Minas); Belo Horizonte MG Brazil
2. Centro Universitário de Patos de Minas (UNIPAM); Patos de Minas; MG Brazil
3. Department of Oral Diagnosis and Pathology; School of Dentistry; Federal University of Minas Gerais (UFMG); Belo Horizonte MG Brazil