Yan, Chaoyang
Liao, Hui
Ma, Ying
Xiang, Qin
Wang, Jing
Funding for this research was provided by:
National Natural Science Foundation of China (71673093, 72074086)
Humanities and Social Sciences of Ministry of Education Planning Fund (16YJA840013)
Article History
Accepted: 19 February 2021
First Online: 6 March 2021
Declarations
:
: All authors declare that there is no conflict of interest.
: Ethical approval for data collection in CHARLS was obtained from the Biomedical Ethics Review Committee of Peking University (IRB00001052–11015).
: All interviewees gave written informed consent before recruitment to the study.