1. Department of Oral Pathology, School of Dentistry Federal University of Rio Grande do Sul Porto Alegre Brazil
2. Molecular Pathology Area, School of Dentistry Universidad de la República Montevideo Uruguay
3. Academic Unit of Oral and Maxillofacial Medicine and Pathology, Department of Clinical Dentistry University of Sheffield Sheffield UK
4. Department of Oral Diagnosis, Piracicaba Dental School Campinas University Piracicaba Brazil
5. Department of Oral Pathology, School of Dentistry Federal University of Bahia Salvador Brazil
6. Health Care Department Universidad Autónoma Metropolitana Mexico City Mexico
7. Department of Oral Surgery and Pathology, School of Dentistry Universidade Federal de Minas Gerais Belo Horizonte Brazil