Zhang, Qian
Zheng, Rujun
Fu, Yan
Mu, Qianqian
Li, Junying
Funding for this research was provided by:
science and technology of sichuan province major project (Grant No. :2020YFS0156)
chengdu science and technology bureau (Grant No. 2020-RK00-00326-ZF)
Article History
Received: 1 October 2020
Accepted: 26 July 2021
First Online: 3 August 2021
Declarations
:
: Ethics approval was provided by the Biomedical Ethics Review Committee of West China Hospital of Sichuan University, protocol number 2020(930). The investigation was conducted during a period of widespread transmission of the COVID-19 outbreak, and given the special nature of the epidemic transmission, the ethics committee authorized all participants to complete oral consent prior to being included in the study.
: Not applicable.
: The authors declare that they have no competing interests.