1. 1INSERM, U955, Henri Mondor Hospital, Assistance Publique–Hôpitaux de Paris (AP-HP), Université Paris Est Créteil, Créteil, France;
2. 2Department of Dermatology, AP-HP, Saint Louis Hospital, Paris, France;
3. 3Institut de Recherche Saint-Louis, Université de Paris, Paris, France;
4. 4INSERM, UMR 976 “Human Immunology, Pathophysiology and Immunotherapy,” Paris, France;
5. 5Department of Dermatology, Charité Hospital, Berlin, Germany;
6. 6INSERM, Unité Mixte de Recherche 1160, Paris, France;
7. 7Department of Hematology, AP-HP, Saint Louis Hospital, Paris, France;
8. 8Department of Pathology, AP-HP, Saint Louis Hospital, Paris, France;
9. 9Department of Pathology, Henri Mondor Hospital, AP-HP, Paris, France;
10. 10Department of Tumor Genomics and Pharmacology, AP-HP, Saint Louis Hospital, Paris, France; and
11. 11Department of Dermatology, Dana Farber/Brigham and Women’s Cancer Center, Harvard Medical School, Boston, MA