1. Department of Pediatric Pneumology and Allergology University Hospital Carl Gustav Carus, Technical University Dresden Dresden Germany
2. Center for Rhinology and Allergology Wiesbaden Germany
3. Institute for Healthcare Research and Technical Orthopedics, Medical University Hannover Germany
4. All‐MED Medical Research Institute Wrocław Poland
5. Department of Clinical Immunology Wroclaw Medical University Wrocław Poland