1. Department of Dermatology, Allergology, and Venereology, University of Lübeck; Lübeck Germany
2. Department of Dermatology, Venereology, and Allergology; University Hospital Würzburg; Würzburg Germany
3. Department of Dermatology and Allergology; University Hospital Marburg; Marburg Germany
4. Department of Dermatology, Venereology, and Allergology; University Hospital Munich (LMU); Munich Germany
5. Department of Dermatology and Venereology; Albert-Ludwigs University Freiburg; Freiburg Germany
6. Center for Dermatology, Allergology, and Dermatosurgery; Helios Hospital Wuppertal; Wuppertal Germany
7. Department of Dermatology and Venereology; University of Cologne; Cologne Germany
8. Dermatologist in Private Practice; Fulda Germany
9. Institute of Clinical Pharmacology and Toxicology, Charité - University Hospital Berlin; Berlin Germany
10. Department of Dermatology and Allergology; University Hospital Ulm; Ulm Germany
11. Pediatric Immunology and Rheumatology; University Hospital and Outpatient Clinical for Children and Adolescents; Leipzig Germany
12. Division of Evidence Based Medicine (dEBM); Department of Dermatology; Charité - University Hospital Berlin; Berlin Germany
13. Department of Dermatology; University Hospital Erlangen; Erlangen Germany
14. Center for Allergy, Department of Dermatology; Charité - University Hospital Berlin; Berlin Germany