1. Department of Pathology, School of Medical Sciences State University of Campinas (UNICAMP) São Paulo Brazil
2. Department of Oral Diagnosis, Piracicaba Dental School State University of Campinas (UNICAMP) Piracicaba Brazil
3. Department of Pathology Federal University of Santa Catarina Florianópolis Brazil
4. Department of Pathology, School of Medicine University of Utah (UU) Salt Lake City Utah USA