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Authors
Zhang, Quan
Han, Xiao
Zhao, Xinyi
Wang, Yue
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (71704006)
National Health Commission of the People's Republic of China (FZS2018-5)
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Article History
Received: 28 January 2022
Accepted: 20 May 2022
First Online: 1 June 2022
Declarations
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: The CHARLS surveys were approved by the Ethical Review Committee of Peking University. All participants provided written informed consent. Study was carried out in accordance with ethical guidelines of Peking University.
: Not applicable.
: All the authors have no financial or any other kind of personal conflicts with this manuscript. Dr Yue Wang has received the grant from the National Health Commission of the People’s Republic of China (Grant code: FZS2018-05). Dr Xinyi Zhao has received the grant from the National Natural Science Foundation of China (Grant code: 71704006). The funding agencies had no direct role in the conduct of the study; the collection, management, analyses, or interpretation of the data; or preparation or approval of the manuscript.
