Received: 27 January 2020
Accepted: 2 June 2021
First Online: 16 June 2021
: The authors declare that they have no conflict of interests/competing interests.
: This study was approved by the Ethics Committee of “Azienda Policlinico Universitario of Messina” and conformed to the tenets of the Declaration of Helsinki. All subjects had given written informed consent prior to participation in the study.
: All authors give their consent for publications.
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