1. Ludwig‐Maximilian‐Universität München Anatomische Anstalt Lehrstuhl Anatomie I – Vegetative Anatomie Pettenkoferstraße 11 München D‐80336 Germany
2. Department of Dermatology University Medical Center Tübingen Eberhard Karls‐University Tübingen Germany
3. Department of Dermatology RWTH Aachen Aachen Germany
4. Lübeck Institute of Experimental Dermatology (LIED) University of Lübeck Lübeck 23562Germany
5. Department of Dermatology University of Lübeck Lübeck 23562 Germany
6. Clinic for Dermatology Semmelweis University Budapest Hungary
7. Department of Dermatology and Allergology Philipps‐Universität Marburg Marburg Germany
8. Department of Dermatology, Venereology and Allergology University Hospital Würzburg Würzburg 97080 Germany