Funding for this research was provided by:
Scientific research project of Hunan Education Department (21A0054)
Received: 18 June 2022
Accepted: 5 September 2022
First Online: 12 September 2022
: This study was approved by the ethics committee of Hunan Provincial People’s Hospital, the First Affiliated Hospital of Hunan Normal University and was performed in accordance with the ethical standards set by the Declaration of Helsinki. Informed consent from Parents/guardians of children(participants) for participation.
: Parents/guardians gave their written informed consent for their child’s personal or clinical details along with all identifying images to be published in this study.
: The authors declare that they have no competing fnancial interests.