1. Medical Sociology; Institute of Epidemiology and Preventive Medicine; University of Regensburg; Regensburg Germany
2. Department of Clinical Social Medicine, Occupational and Environmental Dermatology; University Hospital, Ruprecht Karls University Heidelberg; Heidelberg Germany
3. Department of Dermatology and Allergy; Ludwig Maximilian University; Munich Germany
4. Department of Dermatology; University Hospital Carl Gustav Carus, Technical University Dresden; Dresden Germany
5. University Allergy Center (UAC); University Hospital Carl Gustav Carus, Technical University Dresden; Dresden Germany
6. Department of Dermatology; University Hospital of Erlangen, Friedrich-Alexander-University Erlangen; Erlangen Germany
7. Centre for Evidence-based Healthcare; Medizinische Fakultät Carl Gustav Carus, Technische Universität Dresden; Dresden Germany
8. Department of Dermatology and Dermatological Allergy; Friedrich-Schiller-University Jena; Jena Germany