1. Department of Dermatology and Allergology Städtisches Klinikum Dresden, Academic Teaching Hospital Dresden Germany
2. Department of Nuclear Physics, Sub‐Nuclear and Radiation G. Marconi University Rome Italy
3. Department of Dermatology University of Rome G. Marconi Rome Italy
4. Department of Dermatology University Medical Center Mainz Mainz Germany
5. Department of Dermatology University Hospital Basel Basel Switzerland
6. Department of Dermatology University of Studies Guglielmo Marconi Rome Italy