1. Department of Dermatology University Medical Center Mainz Mainz Germany
2. Department of Dermatology University Hospital Tuebingen Tuebingen Germany
3. Department of Dermatology Venerology and Allergology Charité – Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin and Humboldt‐Universität Berlin Germany
4. Department of Dermatology Hospital Dortmund Dortmund Germany
5. Department of Dermatology Medical Center‐University of Freiburg Freiburg Germany
6. Department of Dermatology DRK‐Krankenhaus Rabenstein Chemnitz Germany
7. Institute of Medical Biostatistics Epidemiology and Informatics (IMBEI) University Medical Center Mainz Germany
8. Department of Dermatology Venerology and Allergology University Hospital Schleswig Holstein, Campus Kiel Kiel Germany
9. Klinik für Innere Medizin II Hämatologie und Onkologie Universitätsklinikum Jena Jena Germany
10. Department of Dermatology Klinikum Bremen‐Ost Gesundheitnord gGmbH Bremen Bremen Germany