Dong, Gengxin
Guo, Yuxin
Tu, Ji
Zhang, Yunqing
Zhu, Huaze
Bao, Dapeng
Zhou, Junhong
Article History
Received: 1 November 2024
Accepted: 24 January 2025
First Online: 6 March 2025
Declarations
:
: The original CHARLS was approved by the ethics review committee of Peking University, and all participants gave written informed consent at the time of participation. This research followed the guidance of the Declaration of Helsinki.
: Not applicable.
: The authors declare no competing interests.