García-Bella, Javier
Talavero-González, Paula
Carballo-Álvarez, Jesús
Sanz-Fernández, Juan C.
Vázquez-Moliní, José M.
García-Feijóo, Julián
Martínez-de-la-Casa, José M.
Article History
Received: 21 November 2017
Revised: 26 April 2018
Accepted: 3 May 2018
First Online: 11 June 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.