Yan, Honggai
Hu, Man
Cui, Yanhui
Li, Li
Liang, Tianwei
Article History
Received: 12 February 2022
Accepted: 25 May 2022
First Online: 9 June 2022
Declarations
:
: The authors declare no competing interests.
: This study was approved by Beijing Children's medical ethics committee. The study was conducted in adherence with the tenets of the Helsinki Declaration. Informed consent was obtained from all the patients or their legal guardians in the study.
: Informed consent for publication have be obtained from their parents or legal guardian in the study.
: No financial benefits have been received.