He, Yuxiu
Zhou, Lin
Liang, Wei
Liu, Qi
Liu, Wanxin
Wang, Shijian
Funding for this research was provided by:
the National Social Science Fund of China (19200526, 19200526)
Article History
Received: 3 August 2023
Accepted: 10 January 2024
First Online: 17 January 2024
Declarations
:
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. The study protocol was approved by the Research Ethics Committee of Hebei Normal University, Shijiazhuang, China (ref. No. 2021LLSC051). Written informed consent was obtained from children’s parents and or caregivers before the study commenced.
: All authors on this manuscript confirm that they have no conflicts of interest to declare.
: Not applicable.
: The authors declare no competing interests.