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Authors
Alberti, Eduardo Juliano https://orcid.org/0000-0003-4094-5212
Pichorim, Sérgio Francisco
Brawerman, Alessandro
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Article History
Received: 19 June 2019
Accepted: 24 June 2019
First Online: 19 July 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This survey was approved by the Ethical Committee of Federal University of Technology - Paraná (UTFPR) – Number 01519113.2.0000.5547.
