1. Department of Dermatology Centre Hospitalier Universitaire de Bordeaux Hôpital Saint‐André Bordeaux France
2. Department of Dermatology Centre Hospitalier de Périgueux Périgueux France
3. Department of Dermatology Centre Hospitalier France‐Etats‐Unis Hôpital de Saint‐Lô Saint‐ Lô France
4. Department of Pathology Centre Hospitalier de Périgueux Périgueux France
5. Dermatology Office Metz France