Article History
Received: 11 March 2018
Accepted: 26 May 2019
First Online: 24 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed were in accordance and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards and ethical approval was obtained from The Human Research Ethics Committee of the Federal University of Pelotas (Protocol number 29/2013).
: Informed consent was obtained from all individual participants included in the study.