Xu, Minzhi
Ke, Pan
Zhou, Ying
Tian, Qingfeng
Gan, Yong
Lu, Zuxun
Funding for this research was provided by:
National Social Science Foundation of China (18ZDA085)
Article History
Received: 31 March 2022
Accepted: 28 October 2022
First Online: 6 November 2022
Declarations
:
: The authors declare that they have no conflict of interest.
: The CLHLS study was approved by the Research Ethics Committee of Peking University (IRB00001052-13074), and all participants or their proxy respondents signed an informed consent form.
: Not applicable.
: Not applicable.