Etiological characteristics of influenza cases and status of influenza vaccination in children ≤ 5 years old in Fuyang
ZHOU Tao, QING Li, GUAN Lin, XIAO Jin-cheng
South China Journal of Preventive Medicine . 2021, (6): 718 -721 .  DOI: 10.12183/j.scjpm.2021.0718