Funding for this research was provided by:
Received: 3 July 2020
Accepted: 29 January 2021
First Online: 9 February 2021
Ethics approval and consent to participate
: All subjects signed an informed consent before being enrolled. The study was approved by the Bioethical Committee of the University of Turin (Protocol number 60344).
: Not applicable.
: The authors declare that they have no competing interests.