Zhang, Xiaoqian
Xue, Mei
Zhang, Zifeng
Gao, Ziyu
Li, Chunyan
Wu, Jing
Niu, Wenquan
Article History
Received: 28 January 2024
Accepted: 23 September 2024
First Online: 30 September 2024
Declarations
:
: The performance of CHARLS was approved by the Institutional Review Board of Peking University (No. IRB00001052-11015), in accordance with the principles of the Declaration of Helsinki. Informed consent was obtained from all subjects and/or their legal guardian(s).
: Not applicable.
: The authors declare no competing interests.