Received: 18 November 2019
Accepted: 1 April 2020
First Online: 15 April 2020
Ethics approval and consent to participate
: Under Italian law, approval by an ethics committee is required only for clinical trials (Law no. 3, 11st January 2018). Consequently, approval by an ethics committee is not required for this study.All survey respondents gave their written consent to participate in the study, after being informed that their participation was voluntary and that they were free to withdraw from the study at any time. The participants were all adults and they were guaranteed confidentiality.
: Not applicable.
: The authors declare that they have no competing interests.