1. Department of Dermatology, Referral Centre for Toxic Bullous Diseases; AP-HP, Hôpital Henri-Mondor, UPEC; 94010 Créteil France
2. EA 7379 EpiDermE, UPEC; 94010 Créteil France
3. Department of Pharmacy; AP-HP, Hôpital Henri-Mondor; 94010 Créteil France