Received: 16 January 2021
Accepted: 12 April 2021
First Online: 18 April 2021
: Ethical approval was waived by the local institutional board (Comitato Etico, AOU Sassari) in view of the retrospective nature of the study, and informed consent was obtained from all patients prior to each procedure.
: All authors agree to publish the paper.
: The authors declare that they have no competing interests.