. 2014 Mar 12;80(1):90–91. [Article in Portuguese] doi: 10.5935/1808-8694.20140018
© 2014 associação Brasileira de Otorrinolaringologia e Cirurgia Cérvico-Facial. Published by Elsevier Editora ltda. all rights reserved.DOi: 10.5935/1808-8694.20140018.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/3.0/).