1. Department of Allergology and Occupational Dermatology; Dermatologikum Hamburg; Hamburg Germany
2. Department of Dermatology, Environmental Medicine, Health Theory; University of Osnabrueck; Osnabrueck Germany
3. Institute for Interdisciplinary Dermatologic Prevention and Rehabilitation (iDerm) at the University of Osnabrueck; Dermatologic Centre; Trauma Hospital; Hamburg Germany
4. Department of Dermatology; Elbe-Klinikum Buxtehude; Buxtehude Germany
5. Institute for Innovative Rehabilitation; Hospital Management and Distress Medicine (IREHA); Lielje Group; Löhne Germany
6. Department of Psychology; Employers' Liability Insurance Association Hospital for Accidents; Hamburg Germany
7. Division of Immunodermatology and Allergy Research; Department of Dermatology and Allergy; Hannover Medical School; Hannover Germany
8. Department of Clinical Social Medicine; Center of Health System Research, Occupational and Environmental Dermatology; University of Heidelberg; Heidelberg Germany
9. Department of Psychosomatic Medicine; Berolina Clinic; Löhne Germany