1. Department of Dermatology University Hospital Regensburg Regensburg Germany
2. Department of Dermatology University Hospital Carl Gustav Carus Dresden Germany
3. Private Practice Pro Derma Institute for Clinical Studies and Innovative Dermatology Dülmen Germany
4. Private Practice Neu‐Ulm Germany
5. Private Practice München Germany
6. Private Practice Halle (Saale) Germany
7. Galderma R&D Sophia Antipolis France
8. Department of Dermatology and Allergology Klinikum Vest GmbH Recklinghausen Germany