Received: 20 March 2020
Accepted: 18 November 2020
First Online: 4 December 2020
Ethics approval and consent to participate
: Ethical approval retrospective studies: the IN-LiMeS is part of the Italian National Statistical Program for the years 2017–2019 and was approved by the Italian Data Protection Authority. No administrative permissions were required to access the raw data. Patients’ data were completely anonymized, de-identified and analyzed in aggregate form for statistical purposes. Results are shown in aggregate form. Therefore, informed consent and Ethics Committee approval are not required.
: Not applicable.
: The Authors declare that they have no competing interests.