1. Information Network of Departments of Dermatology (IVDK) Institute University Medical Center Göttingen Göttingen Germany
2. Translational Research in Inflammatory Skin Diseases University Medical Center Hamburg‐Eppendorf Hamburg Germany
3. Institute for Interdisciplinary Dermatologic Prevention and Rehabilitation (iDerm) University of Osnabrück and Dermatologic Centre, Trauma Hospital Hamburg Hamburg Germany
4. Clinic of Dermatology and Allergology Cantonal Hospital St. Gallen St. Gallen Switzerland
5. Department of Dermatology University Hospital Zuerich Zuerich Switzerland
6. Department of Dermatology University Hospital Münster Münster Germany
7. Unit for Occupational Dermatology, Department of Dermatology Ruprecht‐Karls University Heidelberg Germany
8. Department of Medical Informatics, Biometry and Epidemiology University of Erlangen/Nürnberg Erlangen Germany