Funding for this research was provided by:
Secretaría de Educación Superior, Ciencia, Tecnología e Innovación
Conselho Nacional de Desenvolvimento Científico e Tecnológico
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Text and Data Mining valid from 2018-08-07
Received: 5 May 2017
Accepted: 29 July 2018
First Online: 7 August 2018
Consent for publication
: Not applicable.
: The authors declare that they have no competing interests.
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