Capdevila-Cortada, Marçal http://orcid.org/0000-0003-4391-6580
López, Núria http://orcid.org/0000-0001-9150-5941
Article History
Received: 24 April 2016
Accepted: 18 October 2016
First Online: 21 November 2016
Competing interests
: The authors declare no competing financial interests.