1. Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles (ULB), HUB, 1070 Brussels, Belgium
2. Melanoma Unit, Hospital Clinic Barcelona, University of Barcelona, 08036 Barcelona, Spain
3. Department of Dermatology, Institut Jules Bordet, Université Libre de Bruxelles (ULB), HUB, 1070 Brussels, Belgium
4. Department of Pathology, Erasme University Hospital, Université Libre de Bruxelles (ULB), 1070 Brussels, Belgium
5. Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Carlos III Health Institute, 28029 Barcelona, Spain
6. Unit of Dermatology, Department of Medical, Surgical and Neurological Sciences, University of Siena, 53100 Siena, Italy
7. Groupe d’Imagerie Cutanée Non Invasive (GICNI) of the Société Française de Dermatologie (SFD), 42055 Paris, France
8. Department of Dermatology, University Hospital of Saint-Etienne, 42055 Saint-Etienne, France