Fernández-Alonso, Ana
Antonio Suárez-Quintanilla, Juan
Muinelo-Lorenzo, Juan
Varela-Mallou, Jesús
Smyth Chamosa, Ernesto
Mercedes Suárez-Cunqueiro, María
Article History
Received: 11 January 2015
Accepted: 16 June 2015
First Online: 6 August 2015
Competing interests
: The authors declare no competing financial interests.