Received: 10 May 2020
Accepted: 20 October 2020
First Online: 29 October 2020
Ethics approval and consent to participate
: The study was conducted in accordance with the 1975 declaration of Helsinki. The investigations were conducted through the retrospective review of medical database. The protocol of the study was notified, according to the current legislation on observational studies provided by AIFA, to the Catania1 Ethics Committee of the Catania Polyclinic, which did not require any additions or changes to the protocol. Furthermore, the consent of the study participants was deemed unnecessary as the study only concerned the retrospective review of the medical database.
: Not applicable.
: The authors declare that they have no competing interests.