1. Charité – Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Department of Dermatology, Venereology and Allergology Humboldt‐Universität zu Berlin, and Berlin Institute of Health Berlin Germany
2. St John’s Institute of Dermatology London UK
3. Academic Medical Centre Amsterdam Amsterdam Netherlands
4. University of Szeged Szeged Hungary
5. Office‐Based Dermatology Practice Geel Belgium
6. Radboud University Medical Centre Nijmegen Nijmegen Netherlands
7. Unidad de Investigación. Fundación Piel Sana AEDV Madrid Spain
8. University of Verona Verona Italy
9. University Hospital Copenhagen Copenhagen Denmark
10. Guy's and St Thomas' NHS Foundation Trust London UK
11. Helsinki University Central Hospital Helsinki Finland
12. Department of Dermatology University Hospital of Zürich Zürich Switzerland
13. International Federation of Psoriasis Associations (IFPA)
14. Universitätsklinikum Schleswig‐Holstein Kiel Germany
15. Translational Research in Inflammatory Skin Diseases Institute for Health Services Research in Dermatology and Nursing University Medical Center Hamburg‐Eppendorf Hamburg Germany
16. University of Debrecen Debrecen Hungary
17. Aarhus University Hospital Aarhus Denmark
18. Municipal Hospital Hietzing Vienna Austria
19. Dermatology Department of Public Health & Clinical Medicine Umeå University Umeå Sweden
20. Department of Dermatology Medical University of Warsaw Warsaw Poland
21. Office‐Based Dermatology Practice Mönchengladbach Germany
22. Oslo University Hospital Oslo Norway
23. Department of Dermatology, Inselspital Bern University HospitalUniversity of Bern Bern Switzerland