Yang, Shuo
Lu, Sukun
Guo, Yinghui
Luan, Wenjun
Liu, Jianhua
Wang, Le
Funding for this research was provided by:
Medical science research key project of Hebei province (20211225)
Article History
Received: 22 February 2024
Accepted: 22 April 2024
First Online: 26 April 2024
Declarations
:
: This retrospective study received ethical approval from the institutional review board of ethics committee of the Children’s hospital of Hebei (CHH) (Approval No. 202101, official data March 4, 2021). 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.