Zhao, Jie
Yan, Chaoyang
Han, Dan
Wu, Yunyi
Liao, Hui
Ma, Ying
Zhang, Mei
Li, Sangsang
Wang, Jing
Article History
Received: 10 May 2022
Accepted: 18 October 2022
First Online: 11 November 2022
Declarations
:
: All participants joined CHARLS voluntarily and signed a consent form before participation. Data collection from CHARLS received ethical approval from the Institutional Review Board (IRB00001052-11015). All methods in this study were performed in accordance with the guidelines of the Declaration of Helsinki.
: Not applicable
: The authors declare that they have no competing interests.