Rojas, L
Neumann, I
Herrero, M José
Bosó, V
Reig, J
Poveda, J Luis
Megías, J
Bea, S
Aliño, S F
Article History
Received: 16 December 2013
Revised: 26 March 2014
Accepted: 4 June 2014
First Online: 9 September 2014
Competing interests
: The authors declare no conflict of interest.