Otero-Estévez, O
De Chiara, L
Rodríguez-Berrocal, F J
de la Cadena, M Páez
Cubiella, J
Castro, I
Gonzalez-Mao, C
Hernandez, V
Martínez-Zorzano, V S
Article History
Revised: 30 September 2014
Accepted: 4 November 2014
First Online: 2 December 2014
Competing interests
: The authors declare no conflict of interest.