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. 2015 Nov 3;124(5):627–633. doi: 10.1289/ehp.1509764

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Relationships between the frequency distribution of norovirus outbreaks (y-axis) and normalized environmental predictors (x-axis): (A) gage height (GH) and daily change in gage height (DCGH), (B) temperature (T), (C) salinity (S), and (D) wind (W).