1. Department of Dermatology and Allergology, Philipps-University Marburg, 35037 Marburg, Germany
2. Department of Dermatology, University of Heidelberg, 69117 Heidelberg, Germany
3. Department of Dermatology, University of Lübeck, 23562 Lübeck, Germany
4. Lübeck Institute of Experimental Dermatology (LIED), University of Lübeck, 23562 Lübeck, Germany
5. Department of Dermatology, Venerology and Allergology, German Armed Forces Central Hospital Koblenz, 56072 Koblenz, Germany