Wu, Xin
Gao, Yu
Wang, Miyuan
Peng, Hongye
Zhang, Di
Qin, Biyuan
Pan, Liang
Zhu, Guolong
Article History
Received: 23 January 2023
Accepted: 7 February 2023
First Online: 17 February 2023
Declarations
:
: The CHARLS survey project was approved by the Biomedical Ethics Committee of Peking University, And all participants were required to sign informed consent
: Not applicable.
: The authors declare no competing interests.