The influenza A (H1N1) 2009 pandemic in Singapore.
Hsu
Li Yang
LY
Heng
Derrick M K
DM
Leo
Yee Sin
YS
D004196:Disease Outbreaks; D006801:Humans; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology*; D012846:Singapore / Q000453:epidemiology; D014944:World Health Organization