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Authors
Sun, Min
Guo, Hongmei
Wang, Yi
Ma, Dongchao
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Article History
Received: 29 March 2022
Accepted: 18 May 2022
First Online: 28 May 2022
Declarations
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: All participants provided written informed consent and the protocol was approved by the Institutional Review Board of the Centers for Disease Control and Prevention. All methods were carried out in accordance with Helsinki regulations.
: Not applicable.
: The authors have nothing to disclose regarding conflict of interest with respect to this manuscript.
