Figure 4From: Up-Regulation of Interleukin-9 and the Interleukin-9-Associated Calcium-Activated Chloride Channel hCLCA1 in Nasal Mucosa Following In Vivo Allergen ChallengeCD3-positive T lymphocytes in the submucosa before and after challenge with either saline or ragweed. There is no significant change after either saline or ragweed challenge compared with baseline. Value pairs for each patient before and after challenge are shown by connected dots. Mean values are indicated by lines.Back to article page