Otero-Ortega, Laura
Laso-García, Fernando
Gómez-de Frutos, María del Carmen
Rodríguez-Frutos, Berta
Pascual-Guerra, Jorge
Fuentes, Blanca
Díez-Tejedor, Exuperio
Gutiérrez-Fernández, María
Article History
Received: 9 November 2016
Accepted: 3 January 2017
First Online: 16 March 2017
Competing interests
: The authors declare no competing financial interests.