International Archives of Otorhinolaryngology, Volume: 18, Issue: 2, Pages: 178-183, Published: APR 2014 International Archives of Otorhinolaryngology, Vol 18, Iss 02, Pp 178-183 (2014) International Archives of Otorhinolaryngology v.18 n.2 2014 International Archives of Otorhinolaryngology Fundação Otorrinolaringologia (FORL) instacron:FORL Repositório Institucional da UNIFESP Universidade Federal de São Paulo (UNIFESP) instacron:UNIFESP