1. Department of Dermatology National Reference Center for Rare Skin Disorders Hôpital Saint‐André CHU de Bordeaux Bordeaux France
2. Department of Dermatology Hôpital Larrey CHU de Toulouse Toulouse France
3. INSERM BMGIC U1035 Immuno‐Dermatology Université Bordeaux Bordeaux France
4. Department of Dermatology Henri Mondor University Hospital Créteil France
5. EpidermE Université Paris‐Est Créteil UPEC Créteil France