Wang, Le
Lu, Sukun
Guo, Yinghui
Liu, Jianhua
Wu, Peng
Yang, Shuo
Funding for this research was provided by:
medical science research key project of Hebei province (20211225)
Article History
Received: 23 December 2022
Accepted: 18 October 2023
First Online: 26 October 2023
Declarations
:
: This retrospective study received ethical approval from the institutional review board of ethics committee of the Children’s hospital of Hebei (CHH). The data access was also provided by CHH. The committee waived informed consent because the study was retrospective, there was no risk of harm to subjects, and all patients were anonymous.
: Not applicable.
: The authors declare no competing interests.