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Authors
Zhu, Lili
Yuan, Xiaofeng
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Article History
Received: 4 February 2025
Accepted: 2 May 2025
First Online: 6 May 2025
Declarations
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: The authors declare no competing interests.
: All human subjects involved in this study were treated in accordance with the ethical principles outlined in the Declaration of Helsinki, and the study was approved by the Research Ethics Review Board of the National Center for Health Statistics (NCHS). The patients/participants provided their written informed consent to participate in this study.
