1. Department Dermatology and Allergy Ludwig‐Maximilian University Munich Germany
2. München Klinik Thalkirchner Straße Munich Germany
3. Department of Dermatology, Venereology and Allergology Wroclaw Medical University Wroclaw Poland
4. Department of Dermatology and Pediatric Dermatology Hospital St. Andre Bordeaux France
5. Department of Dermatology and Allergy Biederstein Technische Universität München Munich Germany
6. Christine Kühne Center for Allergy Research and Education CK‐CARE Davos Switzerland