. 2019 Oct 3;87(2):178–187. doi: 10.1016/j.bjorl.2019.08.007
© 2019 Associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. Published by Elsevier Editora Ltda.
This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).