Diaz, M A
Pérez-Martínez, A
Herrero, B
Deltoro, N
Martinez, I
Ramirez, M
Abad, L
Sevilla, J
Merino, E
Ruiz, J
Vicario, J L
Gonzalez-Vicent, M
Article History
Received: 27 October 2015
Revised: 7 March 2016
Accepted: 11 March 2016
First Online: 18 April 2016
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.