1. Università Cattolica del Sacro Cuore Dermatologia, Rome Italy
2. Department of Dermatology Hôpital Erasme Université Libre de Bruxelles Brussels Belgium
3. Dermatology Unit Department of Medical Surgical and Neurological Sciences University of Siena Siena Italy
4. Groupe d’Imagerie Cutanée Non Invasive (GICNI) of the Société Française de Dermatologie (SFD) Paris France
5. Melanoma Unit Hospital Clinic Barcelona University of Barcelona Barcelona Spain
6. CIBER de enfermedades raras Instituto de Salud Carlos III Barcelona Spain
7. Department of Dermatology University Hospital of Saint‐Etienne Saint‐Etienne France
8. Fondazione Policlinico Universitario A. Gemelli IRCCS Rome Italy
9. Department of Dermatology Institut Jules Bordet Université Libre de Bruxelles Brussels Belgium