Funding for this research was provided by:
H2020 European Research Council (675378)
Received: 4 October 2018
Accepted: 26 August 2019
First Online: 3 September 2019
Ethics approval and consent to participate
: The study was approved by the Ethics Committee of the University of Granada, 219/CEIH/2016. All participants signed the consent form before taking part in the study. All steps of the research process complied with the requirements of the GRACE project, of which the presented research forms part.
: not applicable.
: The authors declare that they have no competing interests.