Epidemiological characteristics of imported COVID-19 from abroad and evaluation of prevention and control effect in Guangzhou Baiyun International Airport
LU Min, SUN Wei, CHEN Yan-fang, CHEN Qing-shan, LI Li, HUANG Jia-cheng, JIAN Zhi-ying, YAO Si-bo, LAI Yan-ting, ZHANG Yong-shi, HUANG Si-min
South China Journal of Preventive Medicine . 2021, (1): 45 -48 .  DOI: 10.12183/j.scjpm.2021.0045