Adrados, I
Larrasa-Alonso, J
Galarreta, A
López-Antona, I
Menéndez, C
Abad, M
Gil, J http://orcid.org/0000-0002-4303-6260
Moreno-Bueno, G
Palmero, I
Article History
Received: 13 March 2015
Revised: 4 August 2015
Accepted: 18 September 2015
First Online: 26 October 2015
Competing interests
: The authors declare no conflict of interest.