1. Section of Dermatology; Department of Medicine; University of Verona; Verona Italy
2. Department of Dermatology and Venerology; Federal Academic Teaching Hospital of Feldkirch; Feldkirch Austria
3. Hospital de la Santa Creu i Sant Pau; Universitat Autònoma de Barcelona; Barcelona Spain
4. Sorbonne Paris Cité; Université Paris Diderot; Paris France
5. Department of Dermatology; Hôpital Saint-Louis; Assistance Publique-Hôpitaux de Paris (AP-HP); Paris France
6. UMR INSERM U1163; Institut Imagine; Paris France
7. St John's Institute of Dermatology; King's College London; London UK
8. Division of Dermatology; Geneva University Hospitals; Department of Pathology and Immunology; Faculty of Medicine; University of Geneva; Geneva Switzerland
9. Department of Dermatology; University of Munich; Munich Germany