1. Department of Dermatology and Venereology, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
2. Institute of Molecular and Clinical Immunology, Otto-von-Guericke-University Magdeburg, Magdeburg, Germany
3. Departments of Dermatology, Venereology, Allergology and Immunology, Dessau Medical Center, Dessau, Germany