1. Department of Oral Diagnosis, Semiology and Pathology Areas, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, São Paulo, Brazil
2. Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
3. Getúlio Sales Laboratory, Rio Grande do Norte, Natal, Brazil
4. Department of Sanitation and Environmental Engineering, School of Engineering, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
5. Department of Analytical Chemistry, Institute of Chemistry, Universidade Federal da Bahia (UFBA), Salvador, Brazil
6. Department of Pathology, Biological Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
7. Department of Chemistry, Exact Sciences Institute, Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
8. Service of Oral Pathology, João de Barros Barreto University Hospital, Federal University of Pará (UFPA), Belém, Brazil
9. Department of Pathology, School of Dentistry, Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Brazil
10. Oral Pathology, Dental School, Rio de Janeiro State University (UERJ), Rio de Janeiro, Brazil