Received: 6 January 2021
Accepted: 22 June 2021
First Online: 9 July 2021
: The study adhered to the tenets of the Declaration of Helsinki and received approval from the Institutional Review Board and Research Ethics Committee of Xiangya Hospital, Central South University, Changsha, Hunan. Written, informed consent was obtained from all participants or their guidances before their inclusion in this study.
: Written informed consents for publication of clinical details and clinical images were obtained from participants or the parents of the participants under the age of 16.
: The authors declare that they have no competing interests.