Zhao, Xuan
Wang, Haipeng
Li, Juan
Yuan, Beibei
Funding for this research was provided by:
National Natural Science Foundation of China (71403008)
Article History
Received: 19 March 2020
Accepted: 25 November 2020
First Online: 2 December 2020
Ethics approval and consent to participate
: The study has been approved by the Ethics Committee of Peking University Health Science Center (code of ethics: PKU201412128). Informed consent was obtained from all participants prior to questionnaire administration. Informed consent was verbal, and the ethics committee approved this procedure.
: Not applicable.
: The authors report no competing interests.