Funding for this research was provided by:
Secretaría de Estado de Investigación, Desarrollo e Innovación (PSI2011-29399, PSI2014-56944-P)
Universidad Nacional de Educación a Distancia (2012I/PPRO/007)
Article History
First Online: 26 March 2018
Compliance with Ethical Standards
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: All applicable international, national, and/or institutional guidelines for the care and use of animals were followed. All procedures performed were in accordance with the ethical standards of the institution or practice at which the studies were conducted.