Total recovery of Der p 1 after allergen challenge in 20 nonatopic subjects.

*Each subject had two random sampling times **Samples taken on one occasion only. ***Total allergen recovery—comparison between sampling times (p = 0.2; analysis of variance, Friedman test for multiple samples) **** Total allergen recovery—comparison between aqueous or particulate at any time point (p≥0.2; Wilcoxon rank sum test) N = Number of subjects; IQR = Interquartile Range Total recovery of Der p 1 after allergen challenge in 20 nonatopic subjects.