Flotats, Albert http://orcid.org/0000-0002-0469-827X
Article History
Received: 20 July 2018
Accepted: 15 November 2018
First Online: 29 November 2018
Compliance with ethical standards
:
: The author has no conflict of interest.
: This article is a review article and does not contain any studies with human or animal subjects performed by any of the authors.