Sánchez-Ramos, A
Vargas-Baquero, E
Martin-de Francisco, F J
Godino-Durán, J A
Rodriguez-Carrión, I
Ortega-Ortega, M
Mordillo-Mateos, L
Coperchini, F
Rotondi, M
Oliviero, A
Mas, M
Article History
Received: 16 July 2016
Revised: 17 November 2016
Accepted: 24 November 2016
First Online: 24 January 2017
Competing interests
: The authors declare no conflict of interest.