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Monitoring Influenza Activity in the United States: A Comparison of Traditional Surveillance Systems with Google Flu Trends
Ortiz JR,
Zhou H,
Shay DK,
Neuzil KM,
Fowlkes AL,
et al.
(2011)
Monitoring Influenza Activity in the United States: A Comparison of Traditional Surveillance Systems with Google Flu Trends.
PLOS ONE 6(4): e18687.
https://doi.org/10.1371/journal.pone.0018687