1. Department of Dermatology Medical University of Vienna Vienna Austria
2. Third Faculty of Medicine Charles University Prague Czech Republic
3. FRCPath The Rotherham NHA Foundation Trust Rotherham UK
4. Department of Dermatology and Venerology Helios Klinikum Krefeld Krefeld Germany
5. Hospital Saint Louis Université de Paris Paris France
6. Department of Clinical Immunology and Transfusion Medicine Linköping University Linköping Sweden
7. Department of Biomedical and Clinical Sciences Linköping University Linköping Sweden
8. Onco‐Hematology Department Hautepierre Hospital Strasbourg France
9. Dermatology Department University of Brescia Italy Brescia Italy
10. FRCP St John's Institution of Dermatology Guy's and St Thomas' NHS Foundation Trust London UK
11. Department of Dermatology University Hospital München Germany
12. Translational and Clinical Research Institute Newcastle University Great North Children's Hospital Newcastle upon Tyne Newcastle University Newcastle upon Tyne UK
13. Division of Dermatology University of Alberta Edmonton AB Canada
14. Dept. Dermatology & Venereology Otto‐von‐Guericke University Magdeburg Germany
15. Faculty of Biology and Medicine University of Lausanne Lausanne Switzerland
16. Department of Dermatology Lausanne University Hospital CHUV Lausanne Switzerland
17. Department of Thoracic Surgery Medical University Vienna Vienna Austria
18. Hautklinik Städtisches Klinikum Karlsruhe Karlsruhe Germany
19. Crown Princess Victoria Children's Hospital and Division of Pediatrics Department of Biomedical and Clinical Sciences University Hospital Linköping University Linköping Sweden
20. National and Kapodistrian University of Athens Athens Greece
21. University Hospital Birmingham Birmingham UK
22. Department of Dermatology University Clinics Schleswig‐Holstein Kiel Germany
23. University Clinic for Dermatology Johannes Wesling Medical Centre UKRUBUniversity of Bochum Minden Germany
24. Department of Dermatology Medical University of Graz Graz Austria
25. Department of Dermatology Vanderbilt University Medical Center Nashville TN USA
26. Departments of Dermatology, Venereology, Allergology and Immunology Dessau Medical Center Brandenburg Medical School Theodor Fontane Dessau Germany
27. Department of Cardiac Surgery Medical University of Vienna Vienna Austria
28. Division of Haematology LKH‐Univ. Klinikum Graz Medical University of Graz Graz Austria