Medina-Trillo, Cristina
Aroca-Aguilar, José-Daniel
Méndez-Hernández, Carmen-Dora
Morales, Laura
García-Antón, Maite
García-Feijoo, Julián
Escribano, Julio
Article History
Received: 20 November 2014
Revised: 19 June 2015
Accepted: 25 June 2015
First Online: 29 July 2015
Competing interests
: The authors declare no conflict of interest.