Ruan, Yang
Xie, Longlong
Zou, Aijun
Funding for this research was provided by:
Scientific Research Project of Hunan Provincial Health Commission (20200759, 20200759, 20200759)
Article History
Received: 3 May 2023
Accepted: 4 June 2023
First Online: 14 June 2023
Declarations
:
: The authors declare that they have no conflict of interest.
: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the hospital ethics committee (No. HCHLL-2020-32).
: Written informed consent was obtained from all parents.