Funding for this research was provided by:
Ministerio de Economía, Industria y Competitividad, Gobierno de España (SAF2015-66705-P)
Gobierno de Aragón and FSE “Construyendo Europa desde Aragón” (B39_17R)
Article History
Received: 26 August 2018
Revised: 21 November 2018
Accepted: 25 November 2018
First Online: 7 December 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.