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