1. Department of Bioscience and Oral Diagnosis; Institute of Science and Technology; UNESP - Univ. Estadual Paulista; São José dos Campos Brazil
2. International Research Center; A.C. Camargo Cancer Center; São Paulo Brazil
3. Department of Clinical and Preventive Dentistry; Federal University of Pernambuco; Recife Brazil
4. Department of Head and Neck Surgery and Otorhinolaryngology; A.C. Camargo Cancer Center; São Paulo Brazil