Article History
Received: 24 July 2017
Accepted: 28 August 2017
First Online: 24 September 2017
Compliance with ethical standards
:
: Mónica Marín declares that she has no conflict of interest. Tamara Fernández-Calero declares that she has no conflict of interest. Ricardo Ehrlich declares that he has no conflict of interest.
: This article does not contain any studies with human participants or animals performed by any of the authors.