Funding for this research was provided by:
Agencia Estatal de Investigación (PSI2017-84556-P)
Article History
Received: 5 March 2019
Accepted: 15 July 2019
First Online: 5 August 2019
Compliance with ethical standards
:
: Author Victor Martínez-Pérez declares that he has no conflict of interest. Author Luis J Fuentes declares that he has no conflict of interest. Author Guillermo Campoy 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 institutional and/or national research committee 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.