Sapna SADARANGANI ; Mark I C CHEN ; Angela L P CHOW ; Arul EARNEST ; Mar Kyaw WIN ; Brenda S P ANG
Annals of the Academy of Medicine, Singapore 2010;39(4):341-342
Absenteeism ; Emergency Service, Hospital ; Hospitals, General ; Humans ; Influenza A Virus, H1N1 Subtype ; Influenza, Human ; epidemiology ; Personnel, Hospital ; Sentinel Surveillance ; Singapore ; epidemiology