[Outbreak of influenza A/H1N1].
Nielsen
Jens Ole
JO
Pedersen
Nils Strandberg
NS
D004196:Disease Outbreaks / Q000517:prevention & control; D014943:Global Health; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype / Q000302:isolation & purification*; D007251:Influenza, Human / Q000453:epidemiology* / Q000517:prevention & control / Q000821:virology