Biazus, Jorge Villanova
Stumpf, Camile Cesa
Melo, Marcia Portela
Zucatto, Angela Erguy
Cericatto, Rodrigo
Cavalheiro, Jose Antonio
Damin, Andrea Pires https://orcid.org/0000-0002-5246-7388
Article History
Received: 14 February 2018
Accepted: 6 May 2018
First Online: 11 June 2018
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.
: The present work was performed upon approval by the Ethics and Scientific Committee of the Clinical Hospital of Porto Alegre, Federal University of Rio Grande do Sul. Informed consent was obtained from all patients before being enrolled in the study. All procedures performed in this study were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.