. 2018 Jul 17;69(2):208–210. doi: 10.1016/j.bjane.2018.07.002
© 2018 Sociedade Brasileira de Anestesiologia. Published by Elsevier Editora Ltda.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).