. 2018 Jun 28;85(5):628–635. doi: 10.1016/j.bjorl.2018.05.010
© 2018 Published by Elsevier Editora Ltda. on behalf of Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial.
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).