Funding for this research was provided by:
Conselho Nacional de Desenvolvimento Científico e Tecnológico (144415/2017-8)
Text and Data Mining valid from 2019-11-05
Received: 17 July 2019
Revised: 8 October 2019
Accepted: 15 October 2019
First Online: 5 November 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.