1 Department of Dermatology, Referral Centre for Auto-immune and Toxic Bullous Diseases, Henri-Mondor Hospital (Assistance Publique -Hôpitaux de Paris), UPEC, F-94010 Créteil, France.
2 Laboratory of Hematology, Henri-Mondor Hospital (Assistance Publique -Hôpitaux de Paris), UPEC, F-94010 Créteil, France.
3 Department of Pathology, Henri-Mondor Hospital (Assistance Publique -Hôpitaux de Paris), UPEC, F-94010 Créteil, France.
4 Department of Hematology, Henri-Mondor Hospital (Assistance Publique -Hôpitaux de Paris), UPEC, F-94010 Créteil, France.
5 Laboratory of Pharmacology, Henri-Mondor Hospital (Assistance Publique -Hôpitaux de Paris), UPEC, F-94010 Créteil, France.
6 Department of Dermatology, Referral Centre for Auto-immune and Toxic Bullous Diseases, Henri-Mondor Hospital (Assistance Publique -Hôpitaux de Paris), UPEC, F-94010 Créteil, France; INSERM, CIC 006, Henri-Mondor Hospital (Assistance Publique -Hôpitaux de Paris), UPEC, F-94010 Créteil, France.
7 Department of Dermatology, Referral Centre for Auto-immune and Toxic Bullous Diseases, Henri-Mondor Hospital (Assistance Publique -Hôpitaux de Paris), UPEC, F-94010 Créteil, France; LIC EA4393, Henri-Mondor Hospital (Assistance Publique -Hôpitaux de Paris), UPEC, F-94010 Créteil, France. Electronic address: laurence.allanore@hmn.ap-hp.fr.