Figure 3From: Difference in symptom severity between early and late grass pollen season in patients with seasonal allergic rhinitisScatter plot of the daily mean of the maximum symptom score and the pollen concentrations in the early (open circles) and the late season (closed circles) of 2007 (a) and 2008 (b). Regression lines are shown for the early season (dashed line) and for the late season (solid line).Back to article page