Sánchez-Infantes, D
Gallego-Escuredo, J M
Díaz, M
Aragonés, G
Sebastiani, G
López-Bermejo, A
de Zegher, F
Domingo, P
Villarroya, F
Ibáñez, L
Article History
Received: 14 August 2014
Revised: 2 November 2014
Accepted: 18 December 2014
First Online: 20 January 2015
Competing interests
: The authors declare no conflict of interest.