Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (402282/2013-2, 311232/2013-2)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
Text and Data Mining valid from 2019-04-06
Received: 7 January 2019
Revised: 21 March 2019
Accepted: 29 March 2019
First Online: 6 April 2019
Compliance with Ethical Standards
: The authors declare no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.