Wu, Yinuo
Jiang, Feng
Wu, Shichao
Liu, Yuanli
Tang, Yi-Lang
Funding for this research was provided by:
National Health Commission of China (2018)
Article History
Received: 11 February 2020
Accepted: 25 February 2021
First Online: 5 March 2021
Declarations
:
: The Ethics Committee (IRB) in the Public Health School of Peking Union Medical College approved the study protocol.
: Before responding to the questionnaires of the survey, all participants signed the informed consent.
: The authors declare no conflict of interest.