Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de São Paulo (2016/26022-9)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (001)
Text and Data Mining valid from 2019-06-22
Received: 17 December 2018
Accepted: 14 June 2019
First Online: 22 June 2019
: The authors declare that they have no competing interests.