1. Department of Occupational and Environmental Dermatology Lund University Skåne University Hospital Malmö Sweden
2. Department of Clinical Social Medicine University Hospital Heidelberg Heidelberg Germany
3. Department of Dermatology University Hospital Jena Jena Germany
4. Department of Dermatology University Hospital and Faculty of Medicine University of Coimbra Coimbra Portugal
5. Centro Studi GISED – FROM Presidio Ospedaliero Matteo Rota Bergamo Italy
6. Department of Dermatology University of Groningen University Medical Center Groningen Groningen the Netherlands
7. Department of Dermatology Lund University Skåne University Hospital Malmö Sweden