1. Eli Lilly and Company , Indianapolis, IN , USA
2. Department of Dermatology, National Reference Center for Rare Skin Disorders, CNRS, UMR5164, ImmunoConCept, University of Bordeaux, Bordeaux , France
3. Department of Autoimmune Diseases, Hospital Clinic, Universitat de Barcelona , Barcelona, Catalonia , Spain
4. Department of Dermatology, Bispebjerg Hospital, University of Copenhagen , Copenhagen , Denmark