Received: 8 August 2021
Accepted: 23 November 2021
First Online: 22 December 2021
: The Ethics Committee of the University of Campania <i>Luigi Vanvitelli</i> approved the study with the Protocol No 222/2018. An informed consent for the use of personal data was obtained from parents of each patient.
: Written informed consent for publication of patient clinical images was obtained from the parent of the patient. A copy of the consent form is available for review by the Editor of this journal.
: The authors declare that they have no competing interests.