Figure 3From: Intestinal allergic inflammation in birch pollen allergic patients in relation to pollen season, IgE sensitization profile and gastrointestinal symptomsSeasonal variation in the duodenal cell count (median cell count per mm2and 95% confidence interval) in patients with (S) or without (NS) gastrointestinal symptoms. The filled bars represent biopsies taken outside the birch pollen season and the striped bars during the birch pollen season.Back to article page