South China Journal of Preventive Medicine ›› 2021, Vol. 47 ›› Issue (9): 1151-1154.doi: 10.12183/j.scjpm.2021.1151

• Prevention and Control of COVID-19 • Previous Articles     Next Articles

  

  • Received:2021-02-15 Published:2021-10-18

CLC Number: 

  • R186