Ribas, Y.
Muñoz-Duyos, A.
Article History
Received: 12 December 2018
Accepted: 1 February 2019
First Online: 22 February 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This is a letter to the editor commenting on a topic, not a study so ethical approval is not required.
: For this type of study formal consent is not required.