Funding for this research was provided by:
Fundação Araucária (CP 09/2016 – Protocol 10748)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Text and Data Mining valid from 2019-07-30
Received: 13 December 2018
Accepted: 19 July 2019
First Online: 30 July 2019
Ethics approval and consent to participate
: This study was approved by the Ethics and Research Committee of the State University Londrina (CAAE 43013315.8.0000.5231).
: Not applicable.
: The authors declare that they have no competing interests.