Luo, Dian
Deng, Jing
Becker, Edmund R.
Article History
Received: 12 October 2020
Accepted: 29 July 2021
First Online: 6 August 2021
Declarations
:
: This study is a secondary analysis of the de-identified China Health and Retirement Longitudinal Study (CHARLS) public data. The use of the CHARLS survey data was approved by the Ethical Review Committee of Peking University, and all participants signed an informed consent to participate.
: Not applicable.
: The authors declare that they have no competing interests.