1. Department of Dermatology, Venereology and Allergology; University Hospital of Leipzig; Leipzig Germany
2. Department of Dermatology, Dermatosurgery and Allergology; Asklepios Klinik Weißenfels; Weißenfels Germany
3. Department of Pathology; University Hospital of Leipzig; Halle Germany
4. Institute of Medical Informatics, Statistics and Epidemiology; University of Leipzig; Leipzig Germany