Ruan, Jing
Zhang, Yu
Chen, Yueguo
Article History
Received: 16 December 2022
Accepted: 24 March 2023
First Online: 3 April 2023
Declarations
:
: Written informed consent was obtained from the parents of the participants before the commencement of the study. The study was approved by the ethics committee of Peking University Third Hospital in China (approval number: 2019-063-03) and was conducted following the tenets of the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.