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