1. Dermatology Department; Melanoma Unit; IDIBAPS; Hospital Clinic de Barcelona; Barcelona Spain
2. CIBER de Enfermedades Raras; Instituto de Salud Carlos III; Barcelona Spain
3. Dermatology Department; Centre Hospitalier Lyon-Sud; Hospices Civils de Lyon; Claude Bernard University Lyon 1; Pierre-Bénite France
4. Pathology Department; Hospital Clinic de Barcelona; IDIBAPS; Barcelona Spain