Martínez-Martínez, Ernesto
Ibarrola, Jaime
Fernández-Celis, Amaya
Santamaria, Enrique
Fernández-Irigoyen, Joaquín
Rossignol, Patrick
Jaisser, Frederic
López-Andrés, Natalia
Article History
Received: 19 May 2017
Accepted: 6 September 2017
First Online: 22 September 2017
Competing Interests
: The authors declare that they have no competing interests.