Funding for this research was provided by:
Università degli Studi di Napoli Federico II
Received: 18 November 2020
Revised: 6 April 2021
Accepted: 22 April 2021
First Online: 21 May 2021
: The scientific guarantor of this publication is Professor Arturo Brunetti.
: The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
: No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: • Retrospective• Observational• Multicenter study