Funding for this research was provided by:
Ministerio de Ciencia, Innovación y Universidades (FPU15/02395)
Gobierno de Extremadura-Fondo Europeo de Desarrollo Regional (EE-14-0082-4, GR18009, IB18011)
Gobierno de Extremadura-Fondo Europeo de Desarrollo Regional (GR15041)
Article History
Received: 5 April 2019
Revised: 4 June 2019
Accepted: 7 June 2019
First Online: 19 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Funding sources had no role in the study design, collection, analysis, and interpretation of the data or the decision to submit the manuscript for publication.