1. Department of Surgery; Hospital Ana Costa; Santos Brazil
2. Department of Head and Neck Surgery; Hospital das Clínicas; University of São Paulo School of Medicine; São Paulo Brazil
3. Department of Head and Neck Surgery; Hospital Ana Costa; Santos Brazil
4. Department of Evidence Based Medicine; Medical Sciences School of Santos - UNILUS; Santos Brazil
5. Department of Head and Neck Surgery; University of São Paulo School of Medicine; São Paulo Brazil