1. Department of Occupational and Environmental Dermatology Lund University, Skane University Hospital Malmö Sweden
2. Department of Public Health and Clinical Medicine, Dermatology and Venereology Umeå University Umeå Sweden
3. Department of Dermatology Sahlgrenska Academy at the University of Gothenburg Gothenburg Sweden
4. Occupational and Environmental Dermatology, CAMM Stockholm County Council and Institute of Environmental Medicine, Karolinska Institute Stockholm Sweden
5. Division of Dermatology and Venereology Ryhov County Hospital Jönköping Sweden
6. Faculty of Medicine Institute of Clinical Medicine, Clinic of Chest Diseases, Immunology and Allergology, Vilnius University Vilnius Lithuania
7. Department of Dermatology Skaraborgs Hospital Skövde Sweden