Wang, Fang
Wang, Meifang
Wang, Xuesi
Zhao, Jianshe
Funding for this research was provided by:
the National Natural Science Foundation of China (32171064)
Article History
Received: 24 October 2021
Revised: 27 June 2022
Accepted: 29 July 2022
First Online: 15 August 2022
Declarations
:
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: All procedures performed involving human participants were in accordance with the ethical standards of the institutional and national research committee. All procedures for this study were approved by the Institutional Review Board of Shandong Normal University.
: Informed consent was obtained from all parents and children included in the study.