Cui, Yimin http://orcid.org/0000-0001-6657-3184
Zhu, Chunsu
Lian, Zhiwei
Han, Xueyan
Xiang, Qian
Liu, Zhenming
Zhou, Ying
Article History
Received: 9 January 2021
Accepted: 23 September 2021
First Online: 27 October 2021
Declarations
:
: The China Health and Retirement Longitudinal Study (CHARLS) was approved by the Biomedical Ethics Committee of Peking University, and written informed consent was obtained from the participants.
: Not applicable.
: The authors declare that they have no competing interests.