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Authors
Ning, Zhenxu
He, Shuzhen
Liao, Xinghao
Ma, Chunguang
Wu, Jing
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Article History
Received: 8 February 2024
Accepted: 6 April 2024
First Online: 18 April 2024
Declarations
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: The research protocol for this study has been approved by the Ethics Review Committee of the Xining Center for Disease Control and Prevention in Qinghai Province, China (Approval No.: 2023-LLPJ-02). All procedures were conducted in accordance with relevant guidelines and regulations. Daily surveillance data for all deaths were summarized at the city level, were retrospective, and were low-risk studies. All personal information involved in this article was conducted under the supervision of the relevant researchers at the Xining Municipal Center for Disease Control and Prevention, and only secondary aggregated data were used in the analysis, which did not involve participants' names, identifying information, telephone numbers, or residential addresses; therefore, the Ethics Review Committee of the Xining Center for Disease Control and Prevention waived written informed consent.
: The authors declare no competing interests.
