Affiliation: | 1. Department of Anatomical Pathology, Hospital A.C. Camargo, São Paulo, Brazil;2. Department of General Pathology, Dental School, University of São Paulo, Brazil;3. Department of Head and Neck Surgery, Hospital A.C. Camargo, São Paulo, Brazil;4. Department of Head and Neck Surgery, Barretos Cancer Hospital, São Paulo, Brazil;5. Department of Gynecological Oncology, Barretos Cancer Hospital, São Paulo, Brazil |