D’Amore, L.
Negro, P.
Ceci, F.
Gossetti, F.
Article History
Received: 26 February 2019
Accepted: 11 May 2019
First Online: 18 May 2019
Compliance with ethical standards
:
: LDA, PN, FC, and FG declare that they have no conflict of interest.
: This letter is in compliance with ethical standards.
: This letter does not contain any studies with human participants or animals performed by any of the authors.
: For this type of study, formal consent is not required.