Di, Biao
Jia, Hongling
Luo, Oscar Junhong http://orcid.org/0000-0002-1266-3069
Lin, Fangqin
Li, Kuibiao
Zhang, Yuanliang
Wang, Huadong
Liang, Huiying
Fan, Jun http://orcid.org/0000-0001-6637-9891
Yang, Zhicong
Article History
Received: 18 July 2020
Revised: 31 August 2020
Accepted: 14 September 2020
First Online: 3 October 2020
Competing interests
: The authors declare no competing interests.
: Written informed consent was obtained from each participant and the present study was approved by the Ethical Committee of Guangzhou CDC (GZCDC-ECHR-2020A0002).