García-Cadenas, I
Castillo, N
Martino, R
Barba, P
Esquirol, A
Novelli, S
Orti, G
Garrido, A
Saavedra, S
Moreno, C
Granell, M
Briones, J
Brunet, S
Navarro, F
Ruiz, I
Rabella, N
Valcárcel, D
Sierra, J
Article History
Received: 15 September 2014
Revised: 8 November 2014
Accepted: 16 November 2014
First Online: 12 January 2015
Competing interests
: The authors declare no conflict of interest.