Carriba, P
Jimenez, S
Navarro, V
Moreno-Gonzalez, I
Barneda-Zahonero, B
Moubarak, R S
Lopez-Soriano, J
Gutierrez, A
Vitorica, J
Comella, J X
Article History
Received: 14 September 2014
Revised: 12 December 2014
Accepted: 22 December 2014
First Online: 12 February 2015
Competing interests
: The authors declare no conflict of interest.