Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de Minas Gerais (123)
Text and Data Mining valid from 2019-01-04
Received: 27 September 2018
Accepted: 12 December 2018
First Online: 4 January 2019
Compliance with Ethical Standards
: The authors declare that they have no conflict of interest.