1. School of Public Health and Laboratory Medicine, Hunan University of Medicine , Huaihua , China
2. Center for Blistering Diseases, Department of Dermatology, University Medical Center Groningen, University of Groningen , Groningen , the Netherlands
3. Department of Dermatology, University of Lübeck , Lübeck , Germany
4. Department of Dermatology, University of Heidelberg, Medical Faculty Mannheim , Mannheim , Germany
5. Lübeck Institute of Experimental Dermatology, University of Lübeck , Lübeck , Germany
6. Department of Dermatology, Kurume University School of Medicine , Kurume , Japan
7. Department of Dermatology, Graduate School of Medicine, Osaka Metropolitan University , Osaka , Japan