Zhang, Qing
Xu, Qian
Chen, Yi-yang
Lou, Li-xin
Che, Li-he
Li, Xiao-hua
Sun, Lu-yao
Bao, Wan-guo
Du, Na
Article History
Received: 13 April 2020
Accepted: 30 November 2020
First Online: 17 December 2020
Ethics approval and consent to participate
: The written informed consent could not be obtained from all people during the epidemic, which has been approved by the ethics committee because of the epidemic, and the verbal informed consent has been obtained from all people at the time of admission. This study was approved by the ethics committee of the First Hospital of Jilin University and the Infectious Diseases Hospital of Changchun City (No.2020–399). All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. All the data used in this study was anonymised before its use.
: Not applicable.
: All authors declare that there are no conflicts.