Gao, Hongjie
Chen, Jiawei
Li, Guowei
Cui, Xinhai
Sun, Fengyin
Funding for this research was provided by:
the Key Research and Development Plan of Shandong Province (2019GSF108120)
Natural Science Foundation of Shandong Province (ZR2020MH076)
Article History
Received: 6 February 2021
Accepted: 8 September 2021
First Online: 15 September 2021
Declarations
:
: The study was approved by research ethics committee of Qilu Hospital of Shandong University, shandong, china. A parent of each participant provided their informed consent for their child to participate in the study.
: Informed consent for publication was obtained from the parents of all participants in the study.
: The authors declare that they have no competing interests.