Ren, Xiao
Jiang, Minglan
Han, Longyang
Zheng, Xiaowei
Article History
Received: 27 September 2022
Accepted: 9 December 2022
First Online: 15 December 2022
Declarations
:
: The ethics application for collecting data on human subjects in CHARLS was approved by the Biomedical Ethics Review Committee of Peking University (IRB00001052-11015), and all CHARLS participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.