Liang, Qihong
Chen, Yuxuan
Zhang, Zheng
An, Shengli
Funding for this research was provided by:
the Natural Science Foundation of Guangdong Province, China (2022A1515012152, 2022A1515012152, 2022A1515012152, 2022A1515012152)
Article History
Received: 19 December 2022
Accepted: 6 December 2023
First Online: 14 December 2023
Declarations
:
: All methods in this study on humans described in the manuscript were performed in accordance with national law and the Helsinki Declaration of 1975 and its later amendments. Ethics approval was obtained from the Ethical Review Committee of Peking University, and all the participants provided signed informed consent at the time of participation. Ethical approval for all the CHARLS waves was granted from the Institutional Review Board at Peking University.
: Not applicable.
: The authors declare no competing interests.