Burgos, J http://orcid.org/0000-0002-9923-9403
Rodríguez, L
Cobos, P
Osuna, C
del Mar Centeno, M
Larrieta, R
Martínez-Astorquiza, T
Fernández-Llebrez, L
Article History
Received: 23 November 2014
Revised: 4 May 2015
Accepted: 5 May 2015
First Online: 16 July 2015
Competing interests
: The authors declare no conflict of interest.