Funding for this research was provided by:
Conselleria d'Educació, Investigació, Cultura i Esport (APOSTD/2018/186)
Ministerio de Economía y Competitividad (CGL2015-71523-REDC, GL2016-76273-P)
Text and Data Mining valid from 2019-12-01
Version of Record valid from 2019-12-29
Article History
Received: 15 October 2019
Accepted: 13 November 2019
First Online: 29 December 2019
Ethics approval and consent to participate
: Not applicable
: Not applicable
: The authors declare that they have no competing interests.