1. Department of Dermatology, Saint-Louis Hospital Paris France
2. Department of Dermatology University Hospital Besançon France
3. Department of Pathology University Hospital Besançon France
4. Department of Dermatology, Centre Hospitalier Universitaire Vaudois (CHUV), Faculté de Biologie et Médecine Université de Lausanne Lausanne Switzerland
5. University of Lausanne Lausanne Switzerland
6. Department of Dermatology University Hospital Zurich Zurich Switzerland
7. Department of Dermatology Rouen University Hospital Rouen France
8. Department of Pathology Rouen University Hospital Rouen France
9. Department of Pharmacology and Tumor Genomics, Saint-Louis Hospital Paris France
10. Université de Paris Paris France
11. Laboratory of Hematology and EA3518, Saint-Louis Hospital Paris France
12. Department of Pathology, Saint-Louis Hospital Paris France