Funding for this research was provided by:
Ministerio de Economía, Industria y Competitividad, Gobierno de España (ECO2016-79588-R)
Article History
Received: 22 August 2019
Accepted: 12 November 2019
First Online: 2 December 2019
Ethics approval and consent to participate
: Not applicable
: Not applicable
: There are no conflicts of interest for any of the authors.