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Authors
Liu, Haixia
Ma, Shaodi
Feng, Linya
Gao, Juan
Wu, Birong
Xia, Weihang
Xie, Peng
Sun, Liang
Chen, Mingchun
Qin, Qirong
Ding, Xiuxiu
Qu, Guangbo
Sun, Yehuan https://orcid.org/0000-0002-8651-8059
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (81872704)
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Article History
Received: 4 August 2022
Accepted: 26 January 2023
First Online: 13 February 2023
Declarations
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: The authors declare that there are no conflicts of interest.
: The ethical protocol was approved by the ethics committee of Anhui Medical University [number: 20180402].
: Participants’ parents/primary caregivers all signed the informed consent forms. Thanks to the supports of the Centers for Disease Control and Prevention in Fuyang City and Funan county, Changfeng county, Maanshan City and Bowang district. Thanks to the great cooperation of 26 local kindergartens. Thanks to the caregivers of children who participated in the study.
: All the authors listed have approved the manuscript that is enclosed.
