| Affiliation: | 1. Oral Diagnosis Department, Semiology and Pathology, Piracicaba Dental School, University of Campinas (UNICAMP), Piracicaba, S?o Paulo, Brazil;2. Service of Oral Pathology, Jo?o de Barros Barreto University Hospital, Federal University of Pará, Belém, Pará, Brazil;3. Medical School, Clinics Hospital, University of S?o Paulo, S?o Paulo, S?o Paulo, Brazil;4. Department of Oral Pathology and Oral Biology, School of Dentistry, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa |
