1. Department of Dermatology and Venereology, Medical Center ‐ University of Freiburg, Faculty of MedicineUniversity of Freiburg Freiburg Germany
2. Departments of Dermatology, Royal Melbourne Hospital, Faculty of Medicine, Dentistry and Health Sciences, The University of MelbourneParkville and Box Hill Hospital ‐ Monash University, Eastern Health Clinical School Melbourne Victoria Australia
3. Institute for Surgical Pathology, Medical Center ‐ University of Freiburg, Faculty of MedicineUniversity of Freiburg Freiburg Germany