Díez-Fernández, Ana
Sánchez-López, Mairena
Nieto, José Antonio
González-García, Alberto
Miota-Ibarra, José
Ortiz-Galeano, Ignacio
Martínez-Vizcaíno, Vicente
Article History
Received: 27 September 2016
Revised: 8 November 2016
Accepted: 11 November 2016
First Online: 12 January 2017
Competing interests
: The authors declare no conflict of interest.
Free to read: This content has been made available to all.