1. Department of Dermatology Chapel Allerton Hospital Leeds UK
2. Department of Medical Informatics, Biometry and Epidemiology University of Erlangen/Nürnberg Erlangen Germany
3. Information Network of Departments of Dermatology (IVDK) Institute at the University Medical Center Göttingen Göttingen Germany
4. Department of Dermatology University Hospital Zurich Zurich Switzerland
5. Department of Dermatology Kantonsspital St. Gallen St. Gallen Switzerland
6. Department of Dermatology University Hospital Carl Gustav Carus, Technical University of Dresden Dresden Germany
7. Department of Dermatology, Allergy Unit University Hospital Basel Basel Switzerland
8. Department of Dermatology, Venereology and Allergology St. Josef Hospital, Ruhr University Bochum Bochum Germany
9. Department of Dermatology Hospital del Mar, Institut Mar d'Investigacions Mediques, Universitat Autónoma Barcelona Spain
10. Department of Dermatology, Clinic of Dermatology University Hospital and Faculty of Medicine, University of Coimbra Coimbra Portugal
11. Institute for Interdisciplinary Dermatologic Prevention and Rehabilitation (iDerm) University of Osnabruck, Lower Saxony Institute for Occupational Dermatology (NIB) Osnabruck Germany
12. Department of Dermatology University Hospital Erlangen, University of Erlangen‐Nurnberg Erlangen Germany
13. Department of Dermatology Paul‐Ehrlich‐Institut Langen Germany
14. Department of Dermatology University Medical Centre Groningen, University of Groningen Groningen The Netherlands
15. Department of Dermatology, Inselspital Bern University Hospital, University of Bern Bern Switzerland
16. Dermatology Department of the Hospital de la Princesa Madrid Spain
17. Department of Dermatology VU University Amsterdam The Netherlands
18. Occupational Dermatology, Department of Dermatology Ruprecht‐Karls University Heidelberg Heidelberg Germany