Funding for this research was provided by:
Fundação de Amparo à Pesquisa do Estado de São Paulo (2014/26768-5, 2014/11572-8)
Text and Data Mining valid from 2019-01-01
Received: 14 August 2018
Accepted: 22 December 2018
First Online: 9 January 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.