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Authors
Wang, Baohua
Li, Peiyao
He, Fengdie
Sha, Yuting
Wan, Xia
Wang, Lijun
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Article History
Received: 14 July 2020
Accepted: 8 December 2020
First Online: 4 January 2021
Ethics approval and consent to participate
: This study gained IRB approval, the granting institution was National Center for Chronic and Noncommunicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention. (NCNCD, China CDC).
: Not applicable.
: The authors declare that they have no competing interests.
