Article History
Received: 6 August 2019
Accepted: 17 February 2020
First Online: 11 March 2020
Compliance with ethical standards
:
: G. Cottone, D. Zilio, F.Borelli, F. Amendola, and L. Vaienti declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study. Data were treated anonymously.
: The patients provided written informed consent for the publication and the use of their images.