1. Department of Dermatology; Keio University School of Medicine; Tokyo Japan
2. Department of Pathology; Graduate School of Medical and Dental Sciences; Tokyo Medical and Dental University; Tokyo Japan
3. Department of Dermatology; University of Tokyo Graduate School of Medicine; Tokyo Japan
4. Department of Dermatology; Tokyo Women's Medical University Medical Center East; Tokyo Japan
5. Department of Dermatology; Shinshu University School of Medicine; Matsumoto Japan
6. Division of Dermatology and Dermatopathology; Nippon Medical School Musashi Kosugi Hospital; Kawasaki Japan