Ruiz-Lozano, T
Vidal, J
de Hollanda, A
Canteras, M
Garaulet, M
Izquierdo-Pulido, M
Article History
Received: 29 January 2016
Revised: 2 June 2016
Accepted: 12 June 2016
First Online: 24 June 2016
Competing interests
: The authors declare no conflict of interest.