1. Department of Dermatology and Venereology Institute of Clinical Sciences Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
2. Region Västra Götaland Sahlgrenska University Hospital Department of Dermatology and Venereology Gothenburg Sweden
3. Vienna Dermatologic Imaging Research Group, Department of Dermatology Medical University of Vienna Vienna Austria
4. First Department of Dermatology Aristotle University Thessaloniki Greece
5. Dermatology Clinic Maggiore Hospital University of Trieste Trieste Italy