Received: 14 November 2019
Accepted: 23 June 2020
First Online: 1 July 2020
Ethics approval and consent to participate
: The research protocol was approved by the Institutional Review Board of the Department of Medicine of the University of Udine (Prot. N. 038/2019_IRB). This approval, and no other further permission, allowed the authors to access the data used in the present research.
: Not applicable.
: The authors declare that they have no competing interest.