Peiró, G
Ortiz-Martínez, F
Gallardo, A
Pérez-Balaguer, A
Sánchez-Payá, J
Ponce, J J
Tibau, A
López-Vilaro, L
Escuin, D
Adrover, E
Barnadas, A
Lerma, E
Article History
Received: 25 February 2014
Revised: 7 May 2014
Accepted: 13 May 2014
First Online: 17 June 2014
Competing interests
: The authors declare no conflict of interest.