Received: 8 June 2020
Accepted: 21 September 2020
First Online: 15 October 2020
Ethics approval and consent to participate
: The study was performed by the Declaration of Helsinki, revised in 2016 on medical research. Ethical approval was obtained by the IRB of the University of Messina (#12–16). Written informed consent was obtained from each patient about the study characteristics and possible risks of the study.
: Not applicable.
: The authors declare that they have no conflicts of interest in the present study.