1. Department of Dermatology; Bispebjerg University Hospital; Copenhagen NV Denmark
2. Occupational Medicine; Finnish Institute of Occupational Health; Helsinki Finland
3. Department of Dermatology and Allergy Centre; Centre for Innovative Medical Technology; Odense University Hospital; Institute of Clinical Research; University of Southern Denmark; Odense Denmark
4. Department of Biomedical Science and Human Oncology; Dermatological Clinic; University of Bari; Bari Italy
5. Department of Dermatology; Hospital del Mar; Institut Mar d'Investigacions Mediques; Universitat Autònoma; Barcelona Spain
6. Clinic of Dermatology; University Hospital and Faculty of Medicine; University of Coimbra; Coimbra Portugal
7. Department of Dermatology; University Hospital KU Leuven; Leuven Belgium
8. Cabinet de Dermatologie; Strasbourg France
9. Department of Clinical Social Medicine, Occupational & Environmental Dermatology; University Hospital Heidelberg; Heidelberg Germany