1. Dermatology Department Hôpital Robert‐Debré Reims France
2. Dermatology Department Hôpital Larrey Toulouse France
3. Dermatology Department National Reference Center for Rare Skin Diseases Hôpital Saint‐André Bordeaux France
4. Dermatology Department and Inserm 1098 Centre Hospitalo‐Universitaire (CHU) Besançon France
5. Dermatology Department Centre Hospitalier (CH) Argenteuil France
6. Clinical Immunology Department CH Lyon‐Sud Lyon France
7. Dermatology Department Hôpital Henri‐Mondor Créteil France
8. Dermatology Department CHU Estaing Clermont‐Ferrand France
9. Dermatology Department Lausanne University Hospital CHUV Lausanne Switzerland
10. Dermatology Department CHU Brest France
11. Dermatology Department CHU Lapeyronie Montpellier France
12. Dermatology Department CEReSS‐EA 3279 Research Center in Health Services and Quality of Life Aix Marseille University University Hospital Timone Assistance Publique Hôpitaux de Marseille Marseille France
13. Université de Paris Paris France
14. Dermatology Department Assistance Publique‐Hôpitaux de Paris Hôpital Saint‐Louis Paris France
15. Laboratory of Genetics of Skin Diseases INSERM UMR1163 Institut Imagine Necker Hospital Paris France