Santiago, S
Zazpe, I
Bes-Rastrollo, M
Sánchez-Tainta, A
Sayón-Orea, C
de la Fuente-Arrillaga, C
Benito, S
Martínez, J A
Martínez-González, M Á
Article History
Received: 31 March 2014
Revised: 1 July 2014
Accepted: 4 August 2014
First Online: 17 September 2014
Competing interests
: The authors declare no conflict of interest.