Fig. 1From: Comparative analysis of chronic rhinitis patient profiles during autumn pollen season between grassland and non-grassland cities in North ChinaComparison of allergen profiles of patients with AR in Baotou and Beijing. The chi-square test was used to compare the allergen profiles of patients with AR in the two regions. AR Allergic rhinitis. *P < 0.05; **P < 0.01, ***P < 0.001Back to article page