Contreras-Jurado, Constanza
Alonso-Merino, Elvira
Saiz-Ladera, Cristina
Valiño, Arturo José
Regadera, Javier
Alemany, Susana
Aranda, Ana
Article History
Received: 22 April 2016
Accepted: 11 July 2016
First Online: 3 August 2016
Competing interests
: The authors declare no competing financial interests.