1. Department of Dermatology and Allergy Charité ‐ Universitätsmedizin Berlin Berlin Germany
2. Department of Dermatology and Allergy University of Oldenburg Klinikum Oldenburg AöR Oldenburg Germany
3. Department of Dermatology University Medical Center Mainz Mainz Germany
4. Praxis für Hautkrankheiten Dresden Germany
5. Department of Dermatology University Allergy Center University Hospital Carl Gustav Carus Technical University Dresden Dresden Germany
6. Department of Dermatology and Allergology Ludwig‐Maximilian University Munich Germany
7. Department of Dermatology University Hospital of Essen University of Duisburg‐Essen Essen Germany
8. Novartis Pharma GmbH Nuremberg Germany
9. Novartis Pharma AG Basel Switzerland