Guo, Shuai
Zheng, Xiao-Ying
Funding for this research was provided by:
National Social Science Foundation of China (21ZDA107, 21ZDA107)
National Science and Technology Major Project (SQ2022YFC3600291)
Article History
Received: 26 June 2022
Accepted: 11 July 2023
First Online: 21 August 2023
Declarations
:
: Ethical approval for all the CHARLS waves was granted by the Institutional Review Board at Peking University (IRB00001052-11015). Written consent was obtained from all participants and/or their relatives. All procedures in this study were performed in accordance with the guidelines of the Declaration of Helsinki.
: Not applicable.
: The authors declare no competing interests.