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. Author manuscript; available in PMC: 2016 Jan 31.
Published in final edited form as: J Biomed Inform. 2014 Aug 30;53:15–26. doi: 10.1016/j.jbi.2014.08.011

Fig. 3.

Fig. 3

Incidence of newly infectious influenza cases calculated by ODS on September 8, 2009 (solid line). Daily thermometer sales are shown as an independent indicator of the peak date of the influenza outbreak (dotted line).