Cui, Longyan
Ding, Ding
Chen, Junfeng
Wang, Minghui
He, Fanrong
Yu, Shiyang
Article History
Received: 11 July 2021
Accepted: 25 November 2021
First Online: 8 February 2022
Declarations
:
: This research is based on an open database-China Health and Retirement Longitudinal Survey (CHARLS), which is hosted by the National Development Research Institute of Peking University and jointly executed by the Chinese Social Science Survey Center of Peking University and the Youth League Committee of Peking University. The large-scale interdisciplinary survey project is a major project funded by the National Natural Science Foundation of China. All participants in the project signed written informed consent.
: Not applicable.
: None of authors have any competing interests.