Antonini, Chiara
Calandrini, Sara
Bianconi, Fortunato
Article History
Received: 26 October 2021
Accepted: 8 April 2022
First Online: 29 April 2022
Declarations
:
: Not applicable. No formal ethical review and informed consent were required, as the data used in this analysis were collected from online open datasets and all data were de-identified and aggregated to the national and regional level. No human was directly involved in the study. All methods were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: The authors declare that they have no competing interests.