Funding for this research was provided by:
Ministerio de Economía, Industria y Competitividad, Gobierno de España (ECO2015-67105-R)
Text and Data Mining valid from 2019-08-29
Received: 23 November 2018
Accepted: 14 August 2019
First Online: 29 August 2019
Compliance with ethical standards
: The authors declare the absence of conflict of interest.
: This article does not contain any studies with human or animals participants performed by any of the authors.
: This article does not contain either any information that requires informed consent.