Franchini, Emerson http://orcid.org/0000-0002-0769-8398
da Silva, João Paulo Lopes http://orcid.org/0000-0002-2033-365X
Article History
Received: 30 October 2018
Accepted: 18 January 2019
First Online: 2 February 2019
Compliance with ethical standards
:
: The authors declare no conflict of interest.
: This study was conducted in accordance with the the 1964 Declaration of Helsinki and its 2013 amendment.
: All participants gave their written informed consent prior to the beginning of the study.