1. PhD program in Estomatology and Basic and Applied Pathology; School of Dentistry; University of São Paulo; São Paulo Brazil
2. Laboratory of Molecular Pathology; School of Dentistry; University of São Paulo; São Paulo Brazil
3. Department of Pathology; Brazilian National Cancer Institute/INCA; Rio de Janeiro Brazil
4. Department of Head and Neck Surgery; Brazilian National Cancer Institute/INCA; Rio de Janeiro Brazil
5. National Tumor Bank; Brazilian National Cancer Institute/INCA; Rio de Janeiro Brazil
6. Department of Oral Pathology; School of Dentistry; University of São Paulo; São Paulo Brazil
7. Department of Histology and Morphology; Institute of Biomedical Sciences; Federal University of Uberlândia; Uberlândia Brazil
8. Department of Oral Pathology; School of Dentistry; Federal University of Uberlândia; Uberlândia Brazil