1. German Environment Agency Section II 1.5 Environmental Medicine and Health Effects Assessment Berlin Germany
2. Department of Dermatology and Allergology University Hospital RWTH Aachen Aachen Germany
3. Department of Otorhinolaryngology Klinikum rechts der Isar Technical University Munich Munich Germany
4. Department for Environmental Medicine University Hospital RWTH Aachen Aachen Germany
5. Center of Allergy and Environment (ZAUM) Technical University and Helmholtz Center Munich Munich Germany