1. International Research CenterA.C.Camargo Cancer Center São Paulo Brazil
2. Department of Head and Neck Surgery and OtorhinolaryngologyA.C.Camargo Cancer Center São Paulo Brazil
3. Discipline of Oncology, Department of Radiology and Oncology, Medical SchoolUniversity of São Paulo São Paulo Brazil
4. Laboratory of Molecular Genetics, Center for Translational Research in OncologyCancer Institute of São Paulo São Paulo Brazil
5. Department of General Pathology, Dental SchoolUniversity of São Paulo São Paulo Brazil
6. Pathology DivisionRede D'Or Hospitals Network São Paulo Brazil