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Authors
Cui, Yushan https://orcid.org/0000-0001-9728-2283
Wang, Yang https://orcid.org/0000-0002-9127-1273
Zhang, Dandan https://orcid.org/0000-0002-4763-2019
Duan, Yani
Li, Fang
Li, Wenfeng
Chen, Lu
Jia, Guang https://orcid.org/0000-0003-3981-7221
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Article History
Received: 10 November 2022
Accepted: 3 March 2023
First Online: 11 March 2023
Declarations
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: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the ethics committee of Tianjin Centers for Disease Control and prevention (TJCDC-R-2022–029). All children are approved by their guardians and signed an informed consent form.
: All participants have consented to participate to this study.
: The participants have consented to the submission of the manuscript to the journal.
: The authors declare no competing interests.
