Figure 4From: Sustained efficacy and safety of a 300IR daily dose of a sublingual solution of birch pollen allergen extract in adults with allergic rhinoconjunctivitis: results of a double-blind, placebo-controlled studyDaily mean Adjusted Symptom Score and birch pollen season. Data are presented for Periods 1 (A) and 2 (B) in the FASP1 and FASP2. The daily mean birch pollen count (grains/m3) was the average of pollen count weighted by the number of patients within the catchment area of each pollen trap.Back to article page