Lopez-Vilchez, I
Diaz-Ricart, M
Navarro, V
Torramade, S
Zamorano-Leon, J
Lopez-Farre, A
Galan, A M
Gasto, C
Escolar, G
Article History
Received: 1 December 2015
Revised: 15 July 2016
Accepted: 18 July 2016
First Online: 6 September 2016
Competing interests
: The authors declare no conflict of interest.