1. Department of Dermatology, Hospital Universitari Vall d’Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain.
2. Department of Dermatology, Eberhard-Karls University of Tuebingen, Tuebingen, Germany.
3. Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom.
4. Department of Dermatology, Ninewells Hospital and Medical School, Dundee, United Kingdom.
5. Department of Diabetology, Endocrinology, Nephrology, Section of Nephrology and Hypertension, Eberhard-Karls-University, Tuebingen, Germany.
6. Department of Dermatology, Skin Cancer Center, Ruhr-University Bochum, Bochum, Germany.
7. Medical Department I, University Hospital Marien Hospital Herne, Ruhr-University Bochum, Bochum, Germany.
8. Department of Dermatology, Leiden University Medical Center, Leiden, The Netherlands.
9. Department of Dermatology, University Hospital of Zurich, Switzerland.
10. Service de Dermatologie, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium.
11. Dermato-Oncology Department, Université Paris Cite, AP-HP Hôpital Saint Louis, Cancer Institute APHP. Nord-Université Paris CiteINSERM U976, HIPI, Paris, France.
12. Department of Dermatology, Medical University of Vienna, Vienna, Austria.