Ferrer, I
Verdugo-Sivianes, E M
Castilla, M A
Melendez, R
Marin, J J
Muñoz-Galvan, S
Lopez-Guerra, J L
Vieites, B
Ortiz-Gordillo, M J
De León, J M
Praena-Fernandez, J M
Perez, M
Palacios, J
Carnero, A
Article History
Received: 18 December 2014
Revised: 6 August 2015
Accepted: 7 August 2015
First Online: 21 September 2015
Competing interests
: The authors declare no conflict of interest.