1. Department of Otorhinolaryngology and Surgery in Head and Neck, Federal University of São Paulo/Paulista School of Medicine (UNIFESP/EPM), Sao Paulo, Brazil.
2. Department of Head and Neck Surgery, Beneficencia Portuguesa of Sao Paulo Hospital, Sao Paulo, SP, Brazil.
3. Department of Head and Neck Surgery, Beneficencia Portuguesa of Sao Paulo Hospital.