[A new flu--an old disease in a new suit].
Lazić
Srdan
S
Vojnomedicinska akademija, Institut za epidemiologiju, Beograd, Srbija.
D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000175:diagnosis / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission