Document is current
Any future updates will be listed below
-
Authors
Cao, Zhi
Cheng, Yangyang
Li, Shu
Yang, Hongxi
Sun, Li
Gao, Ying
Yu, Pei
Li, Weidong
Wang, Yaogang http://orcid.org/0000-0002-7325-0663
-
Funding
Funding for this research was provided by:
National Natural Science Foundation of China (91746205)
National Natural Science Foundation of China (71673199)
- License Information
-
More Information
Article History
Received: 3 April 2019
Accepted: 13 June 2019
First Online: 18 June 2019
Ethics approval and consent to participate
: Each participant included in this study signed a written informed consent form before taking the survey. Ethics approval for the data collection in CHARLS was obtained from the Biomedical Ethics Review Committee of Peking University (IRB00001052-11015).
: Not applicable.
: The authors declare that they have no competing interests.
