South China Journal of Preventive Medicine ›› 2021, Vol. 47 ›› Issue (3): 323-326.doi: 10.12183/j.scjpm.2021.0323
• Prevention and Control of COVID-19 • Previous Articles Next Articles
WU Wei1, ZHENG Chan-jiao1, CHI Lan2, ZHANG Yong-hui3, WU Sheng-ming3