Funding for this research was provided by:
Municipality of Forlì
Received: 15 October 2020
Accepted: 16 March 2021
First Online: 6 April 2021
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of University of Bologna, in April 2018. Written informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.