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Authors
Huang, Shiyao
Wei, Han
Yao, Tingting
Mao, Zhengzhong
Sun, Qun
Yang, Lian http://orcid.org/0000-0003-0457-9323
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (71603032)
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Article History
Received: 7 June 2020
Accepted: 21 February 2021
First Online: 28 February 2021
Declarations
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: The current study utilized national public data from the China Health and Retirement Longitudinal Study (CHARLS) and did not require separate ethical approval. The CHARLS was approved by the Ethical Review Committee of Peking University, and performed in accordance with the ethical standards of the 1964 Declaration of Helsinki and its later amendments. All the participants in CHARLS have signed informed consent already.
: Not applicable.
: None declared.
