Received: 9 May 2021
Accepted: 3 November 2021
First Online: 25 November 2021
: The study was conducted according to the ethical principles stated in the Declaration of Helsinki. This study was reviewed and approved by the ethics committee of the Affiliated Zhongshan Hospital of Dalian University (Approval number:2017–035), and all patients agreed and provided written informed consent.
: Consent for publication Written informed consent for publication of their clinical details and/or clinical images was obtained from the parent/guardian of each patient.
: The authors declare that they have no conflict of interest.