1. Department of Oral Diagnosis Piracicaba Dental School University of Campinas Piracicaba Brazil
2. Academic Unit of Oral and Maxillofacial Medicine and Pathology Department of Clinical Dentistry University of Sheffield Sheffield UK
3. Department of Oral Pathology School of Dentistry Federal University of Bahia Salvador Brazil
4. Pathology Service Moinhos de Vento Hospital Porto Alegre Brazil
5. Department of Oral Biology and Pathology School of Dentistry University of Pretoria Pretoria South Africa
6. Unit of Oral Pathology and Medicine Department of Stomatology II University of the Basque Country/EHU Leioa Spain
7. Department of Oral Surgery and Pathology School of Dentistry Universidade Federal de Minas Gerais Belo Horizonte Brazil
8. Department of Pathology School of Dentistry Federal University of Rio Grande do Sul Porto Alegre Brazil