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Authors
Zhang, Jingyi
Wang, Jing
Liu, Hua
Wu, Chenkai
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Article History
Received: 3 May 2022
Accepted: 24 January 2023
First Online: 31 January 2023
Declarations
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: NHATS was approved by the Johns Hopkins Bloomberg School of Public Health Institutional Review Board and all participants gave informed consent to be part of NHATS. All methods were performed in accordance with the relevant guidelines and regulations of the Declaration of Helsinki.
: Not applicable.
: The authors have declared no competing interests.
