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‘Google Flu Trends’, http://www.google.org/futrends/about/how.html; Jeremy Ginsberg et al., ‘Detecting Infuenza Epidemics Using Search Engine Query Data’, Nature, 457:7232 (2008), 1012–1014; Declan Butler, ‘When Google Got Flu Wrong’, Nature, 13 February 2013, accessed 22 December 2014, http://www.nature.com/news/when-google-got-flu-wrong-1.12413; Miguel Helft, ‘Google Uses Searches to Track Flu’s Spread’, New York Times, 11 November 2008, accessed 22 December 2014, http://msl1.mit.edu/furdlog/docs/nytimes/2008–11–11_nytimes_ google_infuenza.pdf; Samanth Cook et al., ‘Assessing Google Flu Trends Performance in the United States during the 2009 Influenza Virus A (H1N1) Pandemic’, PLOS One, 19 August 2011, accessed 22 December 2014, http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal. pone.0023610; Jefrey Shaman et al., ‘Real-Time Inluenza Forecasts during the 2012–2013 Season’, Nature, 23 April 2013, accessed 24 December 2014, http://www.nature.com/ncomms/2013/131203/ncomms3837/full/ncomms3837.html.