Affiliation: | 1. Oral Pathology Section, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas (UNICAMP), , Piracicaba, Brazil;2. Department of Health Care, Universidad Autónoma Metropolitana Xochimilco, , Mexico City, Mexico;3. Pathology Section, Clinical Center of Head and Neck/Hospital Herrera Llerandi, , Guatemala City, Guatemala;4. Department of Oral Pathology, Oral Medicine and Oral Surgery, Faculty of Dentistry, Universidad Peruana Ceyetano Heredia, , Lima, Peru |