Pozzilli, P.
Lazzeri, D.
Article History
Received: 12 January 2020
Accepted: 31 January 2020
First Online: 14 February 2020
Compliance with ethical standards
:
: None of the authors has financial conflicts or interests to report in association with the contents of this paper.
: This article is a review of the literature and does not contain any studies with human participants or animals performed by any of the authors.
: No informed consent is available.