Chen, Xiaoxiao
Xu, Qian
Lin, Haijiang
Zhu, Jianfu
Chen, Yue
Zhao, Qi
Fu, Chaowei
Wang, Na
Article History
Received: 9 July 2020
Accepted: 29 June 2021
First Online: 10 July 2021
Declarations
:
: This study was approved by the Institutional Review Board of the Fudan University School of Public Health.(IRB#2020040817). All participants have submitted a brief online informed consent prior to the online inquiry.
: Not applicable.
: The authors declare that they have no competing interests.