Zhou, Xinlin
Hu, Yuwei
Yuan, Li
Gu, Tianan
Li, Dawei
Funding for this research was provided by:
Natural Science Foundation of China (31671151)
the Natural Science Foundation of China (31521063)
the Advanced Innovation Center for Future Education of Beijing Normal University
Article History
Received: 16 January 2019
Accepted: 3 June 2020
First Online: 16 June 2020
Compliance with ethical standards
:
: All authors declare that they have no conflict of interest.
: Informed consent was obtained from all the parents of the participants included in the study.