1. Dermatology Department Centre Hospitalier de Lyon Sud Hospices civils de Lyon Université Claude Bernard Lyon 1 Pierre Bénite France
2. Dermatology Department University Hospital of Saint‐Etienne Saint‐Etienne France
3. Pour le Groupe Imagerie Cutanée Non Invasive de la Société Française de Dermatologie Paris France
4. Dermatology Department Hospital Clinic of Barcelona University of Barcelona IDIBAPS Barcelona Spain
5. Pathology Department Centre Hospitalier de Lyon Sud Lyon France
6. DRCI Hospices Civils de Lyon Lyon France
7. Pathology Department University Hospital of Saint‐Etienne Saint‐Etienne France
8. Pathology Department Hospital Clinic of Barcelona Barcelona Spain
9. Department of Biostatistics Université Claude Bernard Lyon 1 Villeurbanne France