1. Department of Dermatology and Venerology University Hospital Martin‐Luther‐Universität Halle‐Wittenberg Halle (Saale) Germany
2. Department of Pediatrics University Hospital Martin‐Luther‐Universität Halle‐Wittenberg Halle (Saale) Germany
3. Department of Dermatology Allergology and Venerology University of Lübeck Institute of Experimental Dermatology University of Lübeck Lübeck Germany