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Authors
Jin, Mingchu
Liu, Heng
Xu, Jie
Zhou, Yu
Hao, Haidong
Yuan, Yutang
Jia, Hongtao
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Article History
Received: 17 September 2024
Accepted: 4 March 2025
First Online: 18 April 2025
Declarations
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: This is an observational study. This study protocol was reviewed and approved by the U.S. Centers for Disease Control and Prevention’s National Center for Health Statistics Ethics Review Board, approval number: Protocol #2005–06 (January 1, 2005- December 31, 2010). Written informed consent was obtained from participants prior to the study.
: The authors declare no competing interests.
