Ramos, Bernardo Faria
Cal, Renato
Carmona, Sergio
Weber, Konrad P.
Zuma e Maia, Francisco
Article History
First Online: 8 August 2019
Compliance with Ethical Standards
: This is a prospective study conducted in accordance with the Declaration of Helsinki and approved by the Research Ethics Committee of Brazilian Lutheran University (ULBRA RS) in Canoas (CAEE 06137012.3.2002.5349). All subjects participated voluntarily and informed consent was obtained from all individual participants included in the study.
: The authors declare that there is no conflict of interest.