Rabanal, Francesc
Grau-Campistany, Ariadna
Vila-Farrés, Xavier
Gonzalez-Linares, Javier
Borràs, Miquel
Vila, Jordi
Manresa, Angeles
Cajal, Yolanda
Article History
Received: 19 November 2014
Accepted: 20 April 2015
First Online: 29 May 2015
Competing interests
: The authors declare no competing financial interests.