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Internet-based monitoring of influenza-like illness (ILI) in the general population of the Netherlands during the 2003–2004 influenza season

Richard L Marquet*, Aad IM Bartelds, Sander P van Noort, Carl E Koppeschaar, John Paget, François G Schellevis and Jouke van der Zee

BMC Public Health 2006, 6:242  doi:10.1186/1471-2458-6-242