Sánchez-Huertas, Carlos
Freixo, Francisco
Viais, Ricardo http://orcid.org/0000-0002-8146-3693
Lacasa, Cristina
Soriano, Eduardo
Lüders, Jens
Article History
Received: 20 January 2016
Accepted: 9 June 2016
First Online: 13 July 2016
Competing interests
: The authors declare no competing financial interests.