Study Status: Active, not recruiting
Recruit Status: Unknown status
Study Type: Interventional
Official Title: Challenge Test for Acetylsalicylic Acid Hypersensitivity
Brief Summary: The investigators want to find new challenge test for Acetylsalicylic hypersensitivity / Aspirin hypersensitivity. The investigators suggest that this new test will be as efficient as the already established protocols in terms of sensitivity and specificity.