Funding for this research was provided by:
Fondo Nacional de Desarrollo Científico y Tecnológico (1160792)
Text and Data Mining valid from 2019-01-02
Received: 1 August 2018
Accepted: 6 December 2018
First Online: 2 January 2019
Compliance with Ethical Standards
: MR, FC, PR, and KB were coauthors of the research project FONDECYT 1160792. The rest of the authors declare that they have no conflict of interest.