1. Department of Dermatology and Allergy University Hospital Schleswig‐Holstein Campus Kiel Germany
2. Center for Evidence‐Based Healthcare University Hospital Carl Gustav Carus, Technical University Dresden Germany
3. Department of Pediatric Dermatology Children’s Hospital Auf Der Bult, Academic Hospital Hannover Germany
4. Department of Dermatology University Hospital Carl Gustav Carus, Technical University Dresden Dresden Germany
5. Cnopfsche Children's Hospital/Neonatology, Pediatrics, DIAKONEO KdöR Nuremberg Germany
6. Clinics for Dermatology Elbe Klinikum Buxtehude Buxtehude Germany
7. Clinics and Outpatient Clinics for Dermatology and Allergy LMU Munich Munich Germany
8. Department of Dermatology and Allergy University Hospital Augsburg Augsburg Germany
9. Pediatric Respiratory Medicine, Immunology and Critical Care Medicine Charité Universitätsmedizin Berlin Berlin Germany
10. Praxis für Kinderpneumologie/Allergologie Kinderzentrum Dresden‐Friedrichstadt Dresden Germany
11. Division of Immunodermatology and Allergy Research, Department of Dermatology and Allergy Hannover Medical School Hannover Germany
12. Rehaforschung Nord e.V Sylt Germany