1. Department of Dermatology Venereology and Allergology Division of Evidence‐Based Medicine (dEBM) Charité – Universitätsmedizin Berlin corporate member of Freie Universität Berlin Humboldt‐Universität zu Berlin and Berlin Institute of Health Berlin Germany
2. Dermatology Venereology and Allergology Immunology Center Dessau Municipal Hospital Dessau Germany
3. German Center for Health Services Research in Dermatology (CVderm), Institute for Health Services Research in Dermatology and Nursing (IVDP) University Medical Center Hamburg‐Eppendorf (UKE) Hamburg Germany
4. Department of Dermatology and Venereology University Hospital of Geneva Geneva Switzerland
5. Katholisches Klinikum Mainz Mainz Germany
6. Deutscher Psoriasis Bund e.V. Germany
7. Psoriasis Center Department of Dermatology Venereology Allergology University Hospital Schleswig‐Holstein Campus Kiel Kiel Germany
8. Department of Dermatology and Allergy Klinikum Hanau Hanau Germany
9. Dermatology practice Oranienburg Germany
10. Center for Translational Research in Inflammatory Skin Diseases Institute for Health Services Research in Dermatology and Nursing, University Medical Center Hamburg‐Eppendorf Hamburg Germany
11. Dermatology practice Osnabrück Germany
12. Dermatology practice Oldenburg Germany
13. Berolina Klinic Löhne Germany
14. Dermatology practice Mahlow Germany
15. Dermatology practice Selters Germany
16. Department of Dermatology, Venereology and Allergology, University Hospital Frankfurt, Frankfurt/Main, Germany and Working group Evidence‐based Medicine Frankfurt Institute for General Practice, Goethe University Frankfurt Frankfurt/Main Germany