Affiliation: | 1. Department of Dermatology and Venereology, Freiburg University Medical Center, Albert Ludwigs University, Freiburg, Germany;2. Institute of Clinical Pathology, Albert Ludwig University, Freiburg, Germany;3. Department of Dermatology, Venereology, and Allergology, Frankfurt University Medical Center, Frankfurt, Germany;4. Departments of Dermatology, Royal Melbourne Hospital, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville and Box Hill Hospital ‐ Monash University, Eastern Health Clinical School, Box Hill, Victoria, Australia |