Received: 1 July 2020
Accepted: 8 September 2020
First Online: 14 September 2020
Ethics approval and consent to participate
: All participants received a complete description of the study and granted written informed consent. The Ethical Committee of the ‘Sapienza’ University of Rome, Italy, approved the project.
: Not applicable.
: The authors declare that they have no competing interests related to this study.