[Review: influenza A and its vaccine].
Cheng-long
CL
Xiong
Lu-fang
LF
Jiang
Li-wen
LW
Ju
D006801:Humans; D009980:Influenza A virus; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control* / Q000821:virology
D007252:Influenza Vaccines