Received: 2 November 2020
Accepted: 2 January 2021
First Online: 12 January 2021
Ethics approval and consent to participate
: Ethical approval was waived by the local Ethics Committee of University “La Sapienza” of Rome in view of the retrospective nature of the study and all the procedures being performed were part of the routine care.
: All authors agree to publish the paper.
: The authors declare that they have no competing interests.