Text and Data Mining valid from 2019-06-14
Received: 25 February 2019
Accepted: 4 June 2019
First Online: 14 June 2019
Ethics approval and consent to participate
: Not applicable.
: Informed consent for analysis was obtained from patient’s parents and the study protocol conforms to the Italian ethical guidelines.All participants gave written consent for the publication of the identifying photographs.
: The authors declare that they have no competing interests.