Liu, Cai
Liu, Zhao-min
Nicholas, Stephen
Wang, Jian
Funding for this research was provided by:
NHC Key Laboratory of Health Economics and Policy Research in Shandong University (NHC-NEPR2019005)
Article History
Received: 10 December 2020
Accepted: 13 May 2021
First Online: 29 May 2021
Declarations
:
: The China Family Panel Studies were approved by the Ethical Committee of Peking University; informed consent was obtained from all individual participants; and the data were collected in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests as defined by BMC, or other interests that might be perceived to influence the results and/or discussion reported in this paper.