Article History
Received: 31 July 2019
Revised: 19 November 2019
Accepted: 25 November 2019
First Online: 10 December 2019
Compliance with ethical standards
:
: Beatriz Redondo declares that she has no conflict of interest. Jesus Vera declares that he has no conflict of interest. Ruben Molina declares that he has no conflict of interest. Raimundo Jiménez declares that he has no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the University of Granada Institutional Review Board (IRB approval: 438/CEIH/2017) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.