1. Department of Dermatology, Rouen University Hospital and INSERM U1234, Centre de référence des maladies bulleuses autoimmunes, Normandie University, Rouen, France
2. Department of Biostatistics, Rouen University Hospital and INSERM U1219, Normandie University, Rouen, France
3. Department of Pharmacy, Rouen University Hospital, Normandy University, Rouen, France
4. Department of Dermatology, Assistance Publique des Hôpitaux de Marseille, Aix Marseille University, Marseille, France
5. Department of Dermatology, University of Rennes, Rennes, France
6. Department of Dermatology, University of Lille, Lille, France
7. Department of Dermatology, University of Reims, Reims, France
8. Department of Dermatology, Tours University Hospital, Tours, France
9. Dr Phillip Frost Department of Dermatology and Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, Florida
10. Department of Dermatology, Hôpital Erasme, Université Libre de Bruxelles, Brussels, Belgium
11. Department of Dermatology, Universitat Internacional de Catalunya, Barcelona, Spain
12. Department of Dermatology, University Hospital of Bern, Inselspital, Bern, Switzerland
13. Department of Dermatology, Henri-Mondor University Hospital, Paris, France
14. Department of Dermatology, Centre Sabouraud, Hopital Saint Louis, Paris, France