Zhao, Yang
Zhao, Siqi
Zhang, Lin
Haregu, Tilahun Nigatu
Wang, Haipeng http://orcid.org/0000-0002-1315-3474
Funding for this research was provided by:
Natural Science Foundation of Shandong Province (ZR2016GQ02)
Article History
Received: 14 September 2020
Accepted: 5 July 2021
First Online: 12 July 2021
Declarations
:
: The Biomedical Ethics Review Committee of Peking University approved the CHARLS study, and all interviewees were required to provide written informed consent. The ethical approval number was IRB00001052–11015.
: Not applicable.
: The authors have declared that they have no competing interests.