1. Department of Dermatology and Allergy, University Hospital Charité, Berlin, Germany
2. Center for Dermatosurgery, Havelklinik, Berlin, Germany
3. Interdisciplinary Group of Molecular Immunopathology, Dermatology/Medical Immunology, University Hospital Charité, Berlin, Germany
4. Division for General Internal Medicine, Psychosomatics and Psychotherapy, University Hospital Charité, Berlin, Germany
5. Department of Psychosomatics and Psychotherapy, Justus-Liebig-University, Gießen, Germany
6. Psoriasis Research and Treatment Center, University Hospital Charité, Berlin, Germany